B331133131323131133132233133313113313231123313231333133313233231312312121
>>
B33113313132313113313223313331311331323112331323133313331323323131231212
<<
B331133131323131133132233133313113313231123313231333133313233231312312123
>>
B331133131323131133132233133313113313231123313231333133313233231312312122
>>