<?php
/*****************************
* ProjectEuler - Problem 13
* By Ross Marks
*****************************
* Work out the first ten digits of the sum of the following one-hundred 50-digit numbers.
*
* 37107287533902102798797998220837590246510135740250
* 46376937677490009712648124896970078050417018260538
* 74324986199524741059474233309513058123726617309629
* 91942213363574161572522430563301811072406154908250
* 23067588207539346171171980310421047513778063246676
* 89261670696623633820136378418383684178734361726757
* 28112879812849979408065481931592621691275889832738
* 44274228917432520321923589422876796487670272189318
* 47451445736001306439091167216856844588711603153276
* 70386486105843025439939619828917593665686757934951
* 62176457141856560629502157223196586755079324193331
* 64906352462741904929101432445813822663347944758178
* 92575867718337217661963751590579239728245598838407
* 58203565325359399008402633568948830189458628227828
* 80181199384826282014278194139940567587151170094390
* 35398664372827112653829987240784473053190104293586
* 86515506006295864861532075273371959191420517255829
* 71693888707715466499115593487603532921714970056938
* 54370070576826684624621495650076471787294438377604
* 53282654108756828443191190634694037855217779295145
* 36123272525000296071075082563815656710885258350721
* 45876576172410976447339110607218265236877223636045
* 17423706905851860660448207621209813287860733969412
* 81142660418086830619328460811191061556940512689692
* 51934325451728388641918047049293215058642563049483
* 62467221648435076201727918039944693004732956340691
* 15732444386908125794514089057706229429197107928209
* 55037687525678773091862540744969844508330393682126
* 18336384825330154686196124348767681297534375946515
* 80386287592878490201521685554828717201219257766954
* 78182833757993103614740356856449095527097864797581
* 16726320100436897842553539920931837441497806860984
* 48403098129077791799088218795327364475675590848030
* 87086987551392711854517078544161852424320693150332
* 59959406895756536782107074926966537676326235447210
* 69793950679652694742597709739166693763042633987085
* 41052684708299085211399427365734116182760315001271
* 65378607361501080857009149939512557028198746004375
* 35829035317434717326932123578154982629742552737307
* 88902802571733229619176668713819931811048770190271
* 25267680276078003013678680992525463401061632866526
* 36270218540497705585629946580636237993140746255962
* 24074486908231174977792365466257246923322810917141
* 91430288197103288597806669760892938638285025333403
* 34413065578016127815921815005561868836468420090470
* 23053081172816430487623791969842487255036638784583
* 11487696932154902810424020138335124462181441773470
* 63783299490636259666498587618221225225512486764533
* 67720186971698544312419572409913959008952310058822
* 95548255300263520781532296796249481641953868218774
* 76085327132285723110424803456124867697064507995236
* 37774242535411291684276865538926205024910326572967
* 23701913275725675285653248258265463092207058596522
* 29798860272258331913126375147341994889534765745501
* 18495701454879288984856827726077713721403798879715
* 38298203783031473527721580348144513491373226651381
* 34829543829199918180278916522431027392251122869539
* 40957953066405232632538044100059654939159879593635
* 29746152185502371307642255121183693803580388584903
* 41698116222072977186158236678424689157993532961922
* 62467957194401269043877107275048102390895523597457
* 23189706772547915061505504953922979530901129967519
* 86188088225875314529584099251203829009407770775672
* 11306739708304724483816533873502340845647058077308
* 82959174767140363198008187129011875491310547126581
* 97623331044818386269515456334926366572897563400500
* 42846280183517070527831839425882145521227251250327
* 55121603546981200581762165212827652751691296897789
* 32238195734329339946437501907836945765883352399886
* 75506164965184775180738168837861091527357929701337
* 62177842752192623401942399639168044983993173312731
* 32924185707147349566916674687634660915035914677504
* 99518671430235219628894890102423325116913619626622
* 73267460800591547471830798392868535206946944540724
* 76841822524674417161514036427982273348055556214818
* 97142617910342598647204516893989422179826088076852
* 87783646182799346313767754307809363333018982642090
* 10848802521674670883215120185883543223812876952786
* 71329612474782464538636993009049310363619763878039
* 62184073572399794223406235393808339651327408011116
* 66627891981488087797941876876144230030984490851411
* 60661826293682836764744779239180335110989069790714
* 85786944089552990653640447425576083659976645795096
* 66024396409905389607120198219976047599490197230297
* 64913982680032973156037120041377903785566085089252
* 16730939319872750275468906903707539413042652315011
* 94809377245048795150954100921645863754710598436791
* 78639167021187492431995700641917969777599028300699
* 15368713711936614952811305876380278410754449733078
* 40789923115535562561142322423255033685442488917353
* 44889911501440648020369068063960672322193204149535
* 41503128880339536053299340368006977710650566631954
* 81234880673210146739058568557934581403627822703280
* 82616570773948327592232845941706525094512325230608
* 22918802058777319719839450180888072429661980811197
* 77158542502016545090413245809786882778948721859617
* 72107838435069186155435662884062257473692284509516
* 20849603980134001723930671666823555245252804609722
* 53503534226472524250874054075591789781264330331690
****************************/
$no = array();
$no[] = "37107287533902102798797998220837590246510135740250";
$no[] = "46376937677490009712648124896970078050417018260538";
$no[] = "74324986199524741059474233309513058123726617309629";
$no[] = "91942213363574161572522430563301811072406154908250";
$no[] = "23067588207539346171171980310421047513778063246676";
$no[] = "89261670696623633820136378418383684178734361726757";
$no[] = "28112879812849979408065481931592621691275889832738";
$no[] = "44274228917432520321923589422876796487670272189318";
$no[] = "47451445736001306439091167216856844588711603153276";
$no[] = "70386486105843025439939619828917593665686757934951";
$no[] = "62176457141856560629502157223196586755079324193331";
$no[] = "64906352462741904929101432445813822663347944758178";
$no[] = "92575867718337217661963751590579239728245598838407";
$no[] = "58203565325359399008402633568948830189458628227828";
$no[] = "80181199384826282014278194139940567587151170094390";
$no[] = "35398664372827112653829987240784473053190104293586";
$no[] = "86515506006295864861532075273371959191420517255829";
$no[] = "71693888707715466499115593487603532921714970056938";
$no[] = "54370070576826684624621495650076471787294438377604";
$no[] = "53282654108756828443191190634694037855217779295145";
$no[] = "36123272525000296071075082563815656710885258350721";
$no[] = "45876576172410976447339110607218265236877223636045";
$no[] = "17423706905851860660448207621209813287860733969412";
$no[] = "81142660418086830619328460811191061556940512689692";
$no[] = "51934325451728388641918047049293215058642563049483";
$no[] = "62467221648435076201727918039944693004732956340691";
$no[] = "15732444386908125794514089057706229429197107928209";
$no[] = "55037687525678773091862540744969844508330393682126";
$no[] = "18336384825330154686196124348767681297534375946515";
$no[] = "80386287592878490201521685554828717201219257766954";
$no[] = "78182833757993103614740356856449095527097864797581";
$no[] = "16726320100436897842553539920931837441497806860984";
$no[] = "48403098129077791799088218795327364475675590848030";
$no[] = "87086987551392711854517078544161852424320693150332";
$no[] = "59959406895756536782107074926966537676326235447210";
$no[] = "69793950679652694742597709739166693763042633987085";
$no[] = "41052684708299085211399427365734116182760315001271";
$no[] = "65378607361501080857009149939512557028198746004375";
$no[] = "35829035317434717326932123578154982629742552737307";
$no[] = "94953759765105305946966067683156574377167401875275";
$no[] = "88902802571733229619176668713819931811048770190271";
$no[] = "25267680276078003013678680992525463401061632866526";
$no[] = "36270218540497705585629946580636237993140746255962";
$no[] = "24074486908231174977792365466257246923322810917141";
$no[] = "91430288197103288597806669760892938638285025333403";
$no[] = "34413065578016127815921815005561868836468420090470";
$no[] = "23053081172816430487623791969842487255036638784583";
$no[] = "11487696932154902810424020138335124462181441773470";
$no[] = "63783299490636259666498587618221225225512486764533";
$no[] = "67720186971698544312419572409913959008952310058822";
$no[] = "95548255300263520781532296796249481641953868218774";
$no[] = "76085327132285723110424803456124867697064507995236";
$no[] = "37774242535411291684276865538926205024910326572967";
$no[] = "23701913275725675285653248258265463092207058596522";
$no[] = "29798860272258331913126375147341994889534765745501";
$no[] = "18495701454879288984856827726077713721403798879715";
$no[] = "38298203783031473527721580348144513491373226651381";
$no[] = "34829543829199918180278916522431027392251122869539";
$no[] = "40957953066405232632538044100059654939159879593635";
$no[] = "29746152185502371307642255121183693803580388584903";
$no[] = "41698116222072977186158236678424689157993532961922";
$no[] = "62467957194401269043877107275048102390895523597457";
$no[] = "23189706772547915061505504953922979530901129967519";
$no[] = "86188088225875314529584099251203829009407770775672";
$no[] = "11306739708304724483816533873502340845647058077308";
$no[] = "82959174767140363198008187129011875491310547126581";
$no[] = "97623331044818386269515456334926366572897563400500";
$no[] = "42846280183517070527831839425882145521227251250327";
$no[] = "55121603546981200581762165212827652751691296897789";
$no[] = "32238195734329339946437501907836945765883352399886";
$no[] = "75506164965184775180738168837861091527357929701337";
$no[] = "62177842752192623401942399639168044983993173312731";
$no[] = "32924185707147349566916674687634660915035914677504";
$no[] = "99518671430235219628894890102423325116913619626622";
$no[] = "73267460800591547471830798392868535206946944540724";
$no[] = "76841822524674417161514036427982273348055556214818";
$no[] = "97142617910342598647204516893989422179826088076852";
$no[] = "87783646182799346313767754307809363333018982642090";
$no[] = "10848802521674670883215120185883543223812876952786";
$no[] = "71329612474782464538636993009049310363619763878039";
$no[] = "62184073572399794223406235393808339651327408011116";
$no[] = "66627891981488087797941876876144230030984490851411";
$no[] = "60661826293682836764744779239180335110989069790714";
$no[] = "85786944089552990653640447425576083659976645795096";
$no[] = "66024396409905389607120198219976047599490197230297";
$no[] = "64913982680032973156037120041377903785566085089252";
$no[] = "16730939319872750275468906903707539413042652315011";
$no[] = "94809377245048795150954100921645863754710598436791";
$no[] = "78639167021187492431995700641917969777599028300699";
$no[] = "15368713711936614952811305876380278410754449733078";
$no[] = "40789923115535562561142322423255033685442488917353";
$no[] = "44889911501440648020369068063960672322193204149535";
$no[] = "41503128880339536053299340368006977710650566631954";
$no[] = "81234880673210146739058568557934581403627822703280";
$no[] = "82616570773948327592232845941706525094512325230608";
$no[] = "22918802058777319719839450180888072429661980811197";
$no[] = "77158542502016545090413245809786882778948721859617";
$no[] = "72107838435069186155435662884062257473692284509516";
$no[] = "20849603980134001723930671666823555245252804609722";
$no[] = "53503534226472524250874054075591789781264330331690";
$awns = "0";
foreach($no as $toadd){
$awns = terminal_add($awns, $toadd);
}
function terminal_add($a, $b){
return shell_exec('echo "'.trim($a).'"+"'.trim($b).'"|bc');
}
echo "Awnser: ".substr($awns, 0, 10);
?>