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#include <cstdio>

const int N = 100;

void put(char c, int count = 1) {
	while (count-- > 0) putchar(c);
}

int main()
{
	put('0'); put('1', N-1); put('\n');
	for (int i=1; i<50; ++i) {
		put('1'); put('0', N-1); put('\n');
		put('1', N-1); put('0'); put('\n');
	}
	put('1'); put('0', N-1); put('\n');
}