#include <stdio.h>
#include <stdlib.h>

int main ()
{
    int i, j;
    FILE *mat;
    mat = fopen("matriz1.txt", "w");
    if (!mat)
    {
        printf("Erro ao abrir o arquivo!\n");
        exit(0);
    }
    else
    {
        for (i = 0; i < 6; ++i)
        {
            for (j = 0; j <6; ++j)
            {
                if ((i == 0 || i == 5) || (j == 0 || j == 5))
                {
                    fprintf(mat, "1");
                    if (j < 5) fprintf(mat, " ");
                }
                else if ((i == 1 || i == 4) || (j == 1 || j == 4))
                {
                    fprintf(mat, "2 ");
                }
                else fprintf(mat, "3 ");
            }
            fprintf(mat, "\n");
        }
    }
    return 0;
}