C1111133313331323223313331333133313331323131211111122112313231321231   >>    C111113331333132322331333133313331333132313121111112211231323132123   <<    C1111133313331323223313331333133313331323131211111122112313231321233   >>      C1111133313331323223313331333133313331323131211111122112313231321232   >>