Problem:
Simple Calculator

Write a program which reads two integers a, b and an operator op, and then prints the value of a op b.

The operator op is '+', '-', '*' or '/' (sum, difference, product or quotient). The division should truncate any fractional part.

Input

The input consists of multiple datasets. Each dataset is given in the following format.

a op b

The input ends with a dataset where op = '?'. Your program should not process for this dataset.

Output

For each dataset, print the value in a line.

Constraints

0 ≤ a, b ≤ 20000

No divisions by zero are given.

Sample Input 1

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0

Sample Output 1

3
38
26
10
108

Solution in JAVA (judge verdict: WA: Presentation Error)

import java.util.*;

class Main{
	static int a;
	static int b;
	static int c;
	static int d;
	static int e;
	static int p;
	static double f;
	static int g;
	static int h;
	static int i;
	static int j;
	static int k;
	static int l;
	static int m;
	static int o;
	static int q;
	static double r;
	static int s;
	static int t;
	static int u;
	static double x;
	static double y;
	private static Scanner sc;
	public static void main(String[]agrs){
		sc=new Scanner(System.in);
		a=sc.nextInt();
		String op=sc.next();
		b=sc.nextInt();
		System.out.println();
		int ans=0;
		while(true){
                        if(op.equals("?"))break;
			if(op.equals("+"))ans=a+b;
			if(op.equals("-"))ans=a-b;
			else if(op.equals("*"))ans= a*b;
			else if(op.equals("/"))ans=a/b;
			System.out.println(ans);
			a=sc.nextInt();
			op=sc.next();
			b=sc.nextInt();
			
			
		}
		
		
		
		
	}
}