func_code_string: #include <bits/stdc++.h>   bool a[1005][1005];   int main() {     int n;     scanf( %d , &n);     if (n == 3) {       return puts( 0 1 0 n0 0 1 n1 0 0 ), 0;     } else if (n == 4) {       return puts( -1 ), 0;     };     int n1 = n - (~n & 1);     int i, j;     for (i = 1; i <= n1; i++) {       a[i][i % n1 + 1] = 1;       for (j = 4; j < n1; j += 2) {         a[i][(i + j - 2) % n1 + 1] = 1;       };     };     if (~n & 1) {       a[n][1] = 1;       for (i = 5; i <= n; i += 2) a[n][i] = 1;       a[3][n] = 1;       for (i = 2; i < n; i += 2) a[i][n] = 1;     };     for (i = 1; i <= n; i++) {       for (j = 1; j <= n; j++) {         putchar(48 + a[i][j]);         putchar(32);       };       putchar(  n );     };   }   