C11112331312111112111133133313231333132313232233132322331313331313111   >>    C1111233131211111211113313331323133313231323223313232233131333131311   <<    C11112331312111112111133133313231333132313232233132322331313331313113   >>      C11112331312111112111133133313231333132313232233132322331313331313112   >>