#include <stdio.h>

int main() {
    int a, b;
    printf("Enter two integers separated by a comma: ");
    int input_result = scanf("%d,%d", &a, &b);

    if (input_result != 2) {
        printf("Invalid input. Please enter two integers separated by a comma.\n");
        return 1;
    }

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

    return output_result;
}