C111123313121111121111331323133313233313232233132313231312323221   >>    C11112331312111112111133132313331323331323223313231323131232322   <<    C111123313121111121111331323133313233313232233132313231312323223   >>      C111123313121111121111331323133313233313232233132313231312323222   >>