#include<stdio.h>
int main();
{
    int n;
    int m;
    int u,v,w;
    int b;
    if(n<0)
    {
        printf("Invalid input");
    }
    if(n=0)
    {
        printf("Path not found");
    }
    for(1<=n<=10)
    {
        for(0<=m<=n(n-1))
        {
            for(-1000<w<=1000)
        }
    }
}