C :

#include<stdio.h>
int main(){
int i;
int cred[50],score[50];
  for(i=0;i<50;i++){
    scanf("%d %d",&cred[i],&score[i]);}
  for(i=0;i<50;i++){
    if(score[i]>=80)
      printf("%d %d\n",cred[i],score[i]);}
}

C++ :

#include <stdio.h>
int main() {
	int n, score, i;
	for (i = 1;i <= 50;i++) {
		scanf("%d %d", &n, &score);
		if (score >= 80)
			printf("%d %d\n", n, score);
	}
	return 0;
}

Pascal :

var
  a,b:array[1..50] of longint;
  i:longint;
begin
  for i:=1 to 50 do
  readln(a[i],b[i]);
  for i:=1 to 50 do
  if (b[i]>=80) then writeln(a[i],' ',b[i]);
end.

Java :

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		int n=50;
		Scanner s=new Scanner(System.in);
		while(n--!=0&&s.hasNext()){
			int a[]=new int [2];
			a[0]=s.nextInt();
			a[1]=s.nextInt();
			if(a[1]>=80){
				System.out.print(a[0]+" ");
				System.out.print(a[1]);
              System.out.println();
			}
		}
	}
}

Python :

import sys
for line in sys.stdin:
  if int(line.split()[1]) >= 80:
    print line.rstrip('\n')

C# :

using System;

namespace C言语
{
    class _2_2
    {      
        public static void Main()
        {
            for (int i = 0; i < 50; i++)
            {
                string[] str = Console.ReadLine().Split(' ');
                if(Convert.ToInt32(str[1])>=80) 
                {
                    Console.WriteLine(str[0]+' '+str[1]);
                }
            }
            Console.ReadLine();
            return;
        }
    }
}