#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stddef.h>
 
int main() {
    
    size_t const cell_width = 8;
    size_t const array_width = 64;
    int array[ array_width ][ array_width ];
    
    memset( *array, 0, sizeof(array) );
    
    for( size_t row = 0; row < array_width; row += (cell_width+1) )
    {
        for( size_t col = 0; col < array_width; col += (cell_width+1) )
            array[ row ][ col ] = 1;
    }
    
    for( size_t row = 0; row < array_width; ++row ) {
        for( size_t col = 0; col < array_width; ++col )
            printf( "%d ",  array[row][col] );
        printf("\n");
    }
    
    return EXIT_SUCCESS;
}