#include <stdio.h>

int main()
{
    int a, b;
    scanf("%d%*[, ]%d", &a, &b);
    printf("%d + %d = %d\n", a, b, a + b);
    return 0;
}

<= 1 2
=> 1 + 2 = 3

<= 1,2
=> 1 + 2 = 3

<= 1 , 2
=> 1 + 2 = 3



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