C11112331312111112111133133313231333132313232233132322331323222332311211321   >>    C1111233131211111211113313331323133313231323223313232233132322233231121132   <<    C11112331312111112111133133313231333132313232233132322331323222332311211323   >>      C11112331312111112111133133313231333132313232233132322331323222332311211322   >>