func_code_string: #include <bits/stdc++.h>   char year[10];   int main() {     scanf( %s , year);     int l = strlen(year) - 1;     int num = 0, num2 = 0;     for (int i = 0; i <= l; i++) {       num = num * 10 + year[i] -  0 ;     }     for (int i = 1; i <= l; i++) num2 = num2 * 10 + year[i] -  0 ;     int x = 1;     for (int i = 1; i <= l; i++) x *= 10;     printf( %d n , x - num2);     return 0;   }   