using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
try
{
while (true)
Console.WriteLine(Regex.Replace(Console.ReadLine(), "^(?=.{6})([^ ]*)|.*", "$1"));
}
catch (ArgumentNullException)
{
}
}
}
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MQoxMgoxIDIKMSAyIDMKMSAyIDMgNAoxMiAzCjEyMzQ1CjEyMzQ1NgoxIDIgMyA0IDUKMTIgMzQgNTYKMTIzIDQ1NgoxMjM0IDU2CjEyMzQ1IDYKMTIzNDU2IDcKMTIzNDU2CjEyMzQ1NiA3ODkKMTIzNDU2NwoxMjM0NTY3IDc4OQ==
1
12
1 2
1 2 3
1 2 3 4
12 3
12345
123456
1 2 3 4 5
12 34 56
123 456
1234 56
12345 6
123456 7
123456
123456 789
1234567
1234567 789