Consider the following C program carefully. What will be printed on the screen when this program is compiled and executed?

#include <stdio.h>
int main() {
    int m[2][3] = {{1, 2, 3}, {4, 5, 6}};
    int i, j, s = 0;
    for (i = 0; i < 2; i++)
        for (j = 0; j < 3; j++)
            if ((i + j) % 2 == 0)
                s += m[i][j];
    printf("%d", s);
    return 0;
}