/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static float descontoComposto(float nominal, float taxa, int tempo)
    {
        return (float)(nominal * (1 - (Math.pow((1-taxa), tempo))));        
    }
 
	public static void main (String[] args) throws java.lang.Exception
	{
		float nominal = 2000;
        float taxa = 0.01f;
        int tempo = 2;
 
        System.out.println(descontoComposto(nominal, taxa, tempo));
	}
}

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