#include <stdio.h>

void calculate(int (*a)[4]) {
    int sum[3];  

    for (int i = 0; i < 3; i++) {
        sum[i] = 0;
        for (int j = 0; j < 4; j++) {
            sum[i] += a[i][j];
        }
    }

 
    for (int i = 0; i < 3; i++) {
        printf("Row %d sum = %d\n", i, sum[i]);
    }
}

int main() {
    int a[3][4] = {
        {1, 2, 3, 4},
        {5, 6, 7, 8},
        {9, 10, 11, 12}
    };

    calculate(a);

    return 0;
}