Ampulheta 2D C

#include <stdio.h>

int main(void)
{
    int i;
    int j;

    int first[6][6] = {
        {1,1,1,0,0,0},
        {0,1,0,0,0,0},
        {1,1,1,0,0,0},
        {0,0,0,2,0,1},
        {0,0,0,0,2,0},
        {0,0,0,2,3,9}
    };

    int len = sizeof(first)/sizeof(first[0]);

    for( i = 0; i < 6; i++ )
    {
        for( j = 0; j < sizeof(first); j++)
        {
            printf("aqui vai cada celula: [%d] \n", first[i][j]);
        }
    }

    return 0;
}