C11112331312111112111133133313231333132322121111133313221211331333112111   >>    C1111233131211111211113313331323133313232212111113331322121133133311211   <<    C11112331312111112111133133313231333132322121111133313221211331333112113   >>      C11112331312111112111133133313231333132322121111133313221211331333112112   >>