// editor2
#include<stdio.h>
int main()
{
    int n,m;
    int m = u,v;
    printf("enter the value :5 4");
    printf("enter the value :1 2");
    printf("enter the value :2 3");
    printf("enter the value :3 4");
    printf("enter the value :4 5");
    printf("enter the value :1");
    return 0;
}