C :

#include<stdio.h>

void main(){
	int n;
	int i;
	scanf("%d",&n);
	i=n;
	while(i>=1){
		printf("%d\n",i);
		i--;
	}
} 

C++ :

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

int main() {
	int i,n;
	cin>>n;
	i = n;
	while(i >= 1){
		cout<<i<<endl;
		i = i - 1;
	}
}

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		for(int i=n;i>=1;i--) {
			System.out.println(i);
		}

	}

}

Python :

n = int(input())
for i in range(n, 0, -1):
    print(i)