Help me in solving RCPITCP83 problem

help
,
1

My issue

can’t solve current problem

My code

#include <stdio.h>

int main() {
    int a, b;
    int sum;
    int diff;
    scanf("%d", & a);
    scanf("%d", & b);
    // Complete the code
sum = a+b;
printf("Sum is:%d\n", sum);
diff = a-b;
printf("Difference is:%d\n", diff);
}

Learning course: Learn C Programming
Problem Link: https://www.codechef.com/learn/course/rcpit-programming-c/RCPITLPC13/problems/RCPITCP83