C :

#include <stdio.h>
 
int main()
 
{
    int a;
double b;
    while(scanf("%d",&a) != EOF)
 {if (a==1) 
b=0.0000024;
else 
b=0.0000001;
        printf("%.7f\n",b);
}
    return 0;
}

C++ :

#include <stdio.h>
 
int main()
 
{
    int a;
double b;
    while(scanf("%d",&a) != EOF)
 {switch(a) {
 	case 1:  printf("%.7f\n",0.0000024);break;
 	case 0:  printf("%.7f\n",0.0000001);break;
//default:  printf("error");
 	
      }
}
    return 0;
}

Java :

import java.text.DecimalFormat;
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		
		float f[] = new float[9];
		Scanner reader = new Scanner(System.in); 
		int a;
		DecimalFormat df=new DecimalFormat("#0.0000000");
		while(reader.hasNext()){
			a = reader.nextInt();
			if(a==1){
				f = null;
				f =new float[1];
				f[0]=(float) 4/(11*10*9*8*7*6*5);
				
				
			}
			else {
				f = null;
				f =new float[1];
				f[0] = (float) 0.0000001;
			}
			for(int i=0;i<f.length;i++){
				
				System.out.println(df.format(f[i]));
			}
		}
	}
}