This program illustrates a simple if statement.
It reads in two integers and prints out a
message on the screen according to their values.

#include <iostream>
using namespace std;

int main()
  int a, b;

  cout << "Enter first number: ";
  cin >> a;
  cout << "Enter second number: ";
  cin >> b;

  if(a < b)
 cout << "First number is less than second.\n";

  return 0;

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