10 ^ 23 - 7 is divided by 6 , remainder is ?
anything power by 10 we got 10 and some zeros after that . ( i . e , 1000000000000000 . . . . ) on that , we minus 7 means , we must get last two digits is 93 . and 93 is divided by 6 , we get reminder 3 . answer : a
subtract(subtract(subtract(23, 10), 6), const_4)