C11111333133313232233133313331333133313231312111133121111332221233132311111   >>    C1111133313331323223313331333133313331323131211113312111133222123313231111   <<    C11111333133313232233133313331333133313231312111133121111332221233132311113   >>      C11111333133313232233133313331333133313231312111133121111332221233132311112   >>