Machine :) (Codechef Contest Problem)
Question:- Charlie found a machine while on exploration. He brought the machine to you but you realize that first you need to unlock the machine with a series of steps. Luckily, Charlie had also found a paper containing series of numbers to unlock the machine in T steps. Each step requires an input K to proceed. But unfortunately, the key of digit 7 is broken. You also find out that instead of a single input, you can give two inputs for each step such that the result adds upto K . Since the key 7 is broken, you proceed with the option of breaking up the number into two parts so that you can avoid entering the digit 7 . Your job is to write a program which will break K into two parts a and b such that K = a + b and neither of a or b has digit 7 . Example: K = 3576 can be broken into a = 1633 and b = 1943 Input: First line will contain T , number of steps. Then the steps follow. Each step contains of a single line of input, a integer K Output: For each testcase,