C :

#include<stdio.h>
void main(){
  int peachs=1;
  for(int i=1; i<10; i++)
    peachs=(peachs+1)*2;
  printf("%d",peachs);
}

C++ :

#include <iostream>  
using namespace std;  
int main(){  
   int i,n = 1;
   for(i = 1;i <= 9;i++)
   { 
      n = (n + 1) * 2;
   }
   cout<<n<<endl;
   return 0;  
  } 

Pascal :

var i,n:integer;
begin
  i := 9;
  n := 1;
  while i > 0 do
    begin
      n :=  2 * (n + 1);
      i := i - 1;
    end;
    writeln(n);
    readln;
end.

Java :

public class Main {
	public static void main(String[] args) {
		int n=1;
	for(int i =10;i>1;i--){
		
		n=(n+1)*2;
		
	}
	System.out.println(n);
	}

}

Python :

n = 1
for i in range (9 , 0 , -1):
    n = (n + 1) * 2
    i -= 1
    if i == 0:
        print(n)