#include <stdio.h>

void print_sudoku(int sudoku[9][9]) {
    for (int i = 0; i < 9; i++) {
        if (i % 3 == 0 && i != 0) {
            printf("-------------------------\n");
        }
        for (int j = 0; j < 9; j++) {
            if (j % 3 == 0 && j != 0) {
                printf("| ");
            }
            printf("%d ", sudoku[i][j]);
        }
        printf("\n");
    }
}

int main() {
    int sudoku[9][9] = {
        {5, 3, 0, 0, 7, 0, 0, 0, 0},
        {6, 0, 0, 1, 9, 5, 0, 0, 0},
        {0, 9, 8, 0, 0, 0, 0, 6, 0},
        {8, 0, 0, 0, 6, 0, 0, 0, 3},
        {4, 0, 0, 8, 0, 3, 0, 0, 1},
        {7, 0, 0, 0, 2, 0, 0, 0, 6},
        {0, 6, 0, 0, 0, 0, 2, 8, 0},
        {0, 0, 0, 4, 1, 9, 0, 0, 5},
        {0, 0, 0, 0, 8, 0, 0, 7, 9}
    };
    
    print_sudoku(sudoku);
    
    return 0;
}