#include <stdio.h>

int main() {
    int a, b;
    printf("Enter two integers separated by a comma: ");
    if (scanf("%d , %d", &a, &b) != 2) {
        printf("Invalid input. Please enter two integers separated by a comma.\n");
        return 1;
    }

    int sum = a + b;
    printf("a+b=%d\n", sum);

    return 0;
}