#include<stdio.h>
int main() {
	int m, n,x=0,y=0;
	scanf("%d", &n);
	while (x <= n * n) {
		scanf("%d", &m);
		y++;
		for (int i = 0; i < m; i++) {
			printf("%d", (y + 1) % 2);
			x++;
			if (x == n) {
				printf("\n");
				x = 0;
			}
		}
	}
}