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