ADD TWO NUMBERS

Problem Statement
The task is very simple: given two integers A and B, write a program to add these two numbers and output it.

Input Format
The first line contains an integer T, the total number of test cases. Then follow T lines, each line contains two Integers A and B.

Output Format
For each test case, add A and B and display the sum in a new line.
input:=      3
            1 2
            100 200
            10 40
output:=  3
          300
          50




import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

public class Main {
	public static void main(String[] args) {
	
		InputStream inputStream = System.in;

		InputReader in = new InputReader(inputStream);

		int T = in.nextInt();
		while (T-- > 0) {
			// Read the numbers a and b.
			int a = in.nextInt();
			int b = in.nextInt();
		
			int ans = a + b;
			System.out.println(ans);
		}
	}

	static class InputReader {
		public BufferedReader reader;
		public StringTokenizer tokenizer;

		public InputReader(InputStream stream) {
			reader = new BufferedReader(new InputStreamReader(stream), 32768);
			tokenizer = null;
		}

		public String next() {
			while (tokenizer == null || !tokenizer.hasMoreTokens()) {
				try {
				    tokenizer = new StringTokenizer(reader.readLine());
				} catch (IOException e) {
				    throw new RuntimeException(e);
				}
			}
			return tokenizer.nextToken();
		}

		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
}