C11112331312111112111133133313231333132313331333221333132322111   >>    C1111233131211111211113313331323133313231333133322133313232211   <<    C11112331312111112111133133313231333132313331333221333132322113   >>      C11112331312111112111133133313231333132313331333221333132322112   >>