C :

#include<stdio.h>
int main()
{
  
                   printf("%d",3);
            
    return 0;
}

C++ :

#include <bits/stdc++.h>
using namespace std;

int main() {
	 cout<<3<<endl;
  	 return 0;
}

Pascal :

begin
write('3');
end.

Java :

import java.util.*;
public class Main{
	public static void main(String args[]){	

		for(int i = 1;i<17;i++){			
			if((25+i)/(17-i)==2){
				System.out.println(i);
				break;
			}			
		}
	
	}
}

Python :

for i in range(1, 17):
    if (25 + i) / (17 - i) == 2:
        print(i)