using System;
public class Program
{
public static void Main()
// input data
int a = int.Parse(Console.ReadLine()); // read input string until user pressed Enter, convert it to integer number
int b = int.Parse(Console.ReadLine()); // input another number same way
// calculate result
int sum = a + b;
// output result
Console.WriteLine("a + b = " + sum); // note: plus sign means string concatenation here, since the 1st parameter is string
}