using System;
class Resistor {
    double R;
	double maxP;
    public Resistor(double R, double maxP) {
        this.R = R;
		this.maxP=maxP;
    }
    public double GetCurrent(double U) {
        return U / R;
    }
    public double GetPower(double U) {
        return GetCurrent(U) * U;
    }
	public bool IsAllowedVoltage(double U){
		if(GetPower(U)>maxP){return false;}
		return true;
	}
	public override string ToString(){
		return R+" oomi "+maxP+" vatti";
	}
}

public class ResistorRun4b {
	static Resistor[] Allowed(Resistor[] Rs, double U){
		int Count=0;
		foreach(Resistor R in Rs){
			if(R.IsAllowedVoltage(U)){Count++;}
		}
		Resistor[] Result=new Resistor[Count];
		Count=0;
		foreach(Resistor R in Rs){
			if(R.IsAllowedVoltage(U)){
				Result[Count++]=R;
			}
		}
		return Result;
	}
    public static void Main(String[] args) {
		Resistor[] Resistors=new Resistor[3];
		Resistors[0]=new Resistor(220, 0.5);
		Resistors[1]=new Resistor(220, 0.1);
		Resistors[2]=new Resistor(2200, 0.1);
		
		Resistor[] Good=Allowed(Resistors, 5);
		foreach(Resistor R in Good){
			Console.WriteLine(R);
		}

    }
}