C13223313311212111133133313331333133313123133313231333132321221231   >>    C1322331331121211113313331333133313331312313331323133313232122123   <<    C13223313311212111133133313331333133313123133313231333132321221233   >>      C13223313311212111133133313331333133313123133313231333132321221232   >>