> 
> #include "stdio.h"
> int main()
> {
> 	int i,j,k,time,num,pair,bug1,bug2,a[2001],flag;
> 	scanf("%d",&time);
> 	
> 	for(k=0;k<time;k++)
> 	{
> 		flag=0;
> 		for(i=0;i<2000;i++)
> 			a[i]=-1;
> 		scanf("%d%d",&num,&pair);
> 		for(j=0;j<pair;j++)
> 		{
> 			scanf("%d%d",&bug1,&bug2);
> 			 if(a[bug1]==-1&&a[bug2]==-1){
> 				a[bug1]=0;
> 				a[bug2]=1;
> 			 }
> 			 else
> 				if(a[bug1]!=-1&&a[bug2]==-1)
> 					a[bug2]=(1+a[bug1])%2;
> 				 else
> 					if(a[bug2]!=-1&&a[bug1]==-1)
> 					           a[bug1]=(1+a[bug2])%2;
> 					 else 
> 						if(a[bug1]==a[bug2])
>   	                                                  flag=1;	
> 		}
> 		printf("Scenario #%d:\n",k+1);
> 		if(flag==1) 
> 			printf("Suspicious bugs found!\n");
> 		else
> 			printf("No suspicious bugs found!\n");
> 	}
>   return 1;
> }