#include<stdio.h>
#include<stdlib.h>

int main()
{
	int x,y,n,m;
	n = 10;
	m = 20;

	for (y = 0; y < m; y++){
		for (x = 0; x < n; x++){
			printf(rand() > RAND_MAX / 2 ? "／" : "＼");		
		}
		printf("\n");
	}
}