C11111333133313232233133313331333132313331323133313331311211312131   >>    C1111133313331323223313331333133313231333132313331333131121131213   <<    C11111333133313232233133313331333132313331323133313331311211312133   >>      C11111333133313232233133313331333132313331323133313331311211312132   >>