C :

#include<stdio.h>
int main()
{
    int m,n,t;
    scanf("%d%d%d",&m,&n,&t);
    if(m>=90||n>=90||t>=90)
        printf("beijing");
    else
        printf("nanjing");
    return 0;
}

C++ :

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

int main(){
    int x,y,z;
    cin>>x>>y>>z;
    if(x >= 90 || y >= 90 || z >= 90){
    	cout<<"beijing";
	}else{
		cout<<"nanjing";
	}
}
 

Java :

import java.util.Scanner;
public class Main
{
	public static void main(String[] Args)
	{
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		if(a>=90||b>=90||c>=90)
			System.out.println("beijing");
		else
			System.out.println("nanjing");
	}
}

Python :

n = input().split()
x = int(n[0])
y = int(n[1])
z = int(n[2])
if x >= 90 or y >= 90 or z >= 90:
    print('beijing')
else:
    print('nanjing')