> #include<iostream.h>
> 
> int main(){
> 	int a,answer;
> 	cin>>a;
> 	for(int i=0;i<a;i++){
> 		int num[4];
> 		for(int j=0;j<4;j++)
> 			cin>>num[j];
> 		if(num[3]-num[2]==num[2]-num[1]&&num[2]-num[1]==num[1]-num[0])
> 			answer=2*num[3]-num[2];
                  else
> 		answer=num[3]*num[3]/num[2];
> 		cout<<num[0]<<" "<<num[1]<<" "<<num[2]<<" "<<num[3]<<" "<<answer<<endl;
> 	}
> 	return 0;
> }