#include<stdio.h>
#include<stdlib.h>
int main(){
    int n,v,e,i;
     printf("enter the total no.of vertices:");
    scanf("%d",n);
    if(n<=-10||n>=10){
        printf("Invalid input");
    }
     printf("enter the no.of edges:");
    scanf("%d",e);
    for i in range(0,n-1){
    scanf("%d %d",v,e);
    }
    if(v,e=v+1){
        printf("True")
    }
    return 0;
}