C :

#include<stdio.h>
void main()
{
	int i,n,c=0;
	scanf("%d",&n);
	if(n%2==0){
		while(n%2==0){
			c+=1;
			n/=2;
			
		}
		printf("%d",c);
	}else{
		printf("%d",0);
	}
} 

C++ :

#include <iostream>
using namespace std;
int main(){
	int n,i=0;
	cin>>n;
	while(n%2==0){
		n=n/2;
		i++;
	}
	cout<<i<<endl;
}

Pascal :

var
  a,b,n,i:longint;
begin
  read(a);
  for i:=1 to a do
  if a div 2>0 then begin inc(b); a:=a div 2; end;
  write(b);
end.

Java :

import java.util.Scanner;


public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		  int n=sc.nextInt();
		  int c=0;
		  for(int i=1;;i++){
		  if(n%2==0){
			  c++;
			  n=n/2;
			 
		  }else{
			  break;
		  }
		  
		  }
		  System.out.println(c);
	}
	}

Python :

n=int(input())
s=0

while n%2==0:
    n=n/2
    s+=1
print(s)