#include <stdio.h>
int main()
{
    int x,n,m=0,m2=0;
    scanf("%d",&x);

    while (x>1)
    {
        n=x-1;
        while (n)
        {
            printf(" ");
            n--;
        }
        printf("/");

        while (m)
        {
            printf(" ");
            m--;
        }
        printf("\\");
        printf("\n");
        m2+=2;
        m=m2;
        x--;
    }
    printf("/");
    while (m2>0)
    {
        printf("_");
        m2--;
    }
    printf("\\");
    return 0;
}