View Compilation Error

0_0_29718985_16229.cpp: In function 'int main()':
0_0_29718985_16229.cpp:43:27: error: 'ans' was not declared in this scope
         printf ( "%d\n" , ans + sum3 );
                           ^
0_0_29718985_16229.cpp:45:1: error: expected '}' at end of input
 }
 ^