C11112331312111112111133133313331333132112312113313231333132322121111132211   >>    C1111233131211111211113313331333133313211231211331323133313232212111113221   <<    C11112331312111112111133133313331333132112312113313231333132322121111132213   >>      C11112331312111112111133133313331333132112312113313231333132322121111132212   >>