1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
#include<cstdio>

const int N = 100;

int main() {
	printf("1");
	for (int i = 0; i < N - 1; ++i) {
		printf("0");
	}
	printf("\n");
	printf("0");
	for (int i = 0; i < N - 1; ++i) {
		printf("1");
	}
	printf("\n");
	for (int i = 3; i <= N; ++i) {
		for (int j = 1; j <= N; ++j) {
			if (j == 1) {
				printf("0");
			}
			else if (j == N) {
				printf("1");
			}
			else {
				printf(i % 2 ? "0" : "1");
			}
		}
		printf("\n");
	}

}