using System;
namespace test_3
{
class Program
{
public static void Main(string[] args)
{
int a = 0;
bool b = false;
int c = 0;
while(c != 3)
{
a = int.Parse(Console.ReadLine());
Console.WriteLine(a);
if(a!=42)
{
b = true;
}
if(a == 42 && b == true)
{
c++;
b = false;
}
}
}
}
}
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