C11111333133313232233133313331333133313231312331323133313223222311   >>    C1111133313331323223313331333133313331323131233132313331322322231   <<    C11111333133313232233133313331333133313231312331323133313223222313   >>      C11111333133313232233133313331333133313231312331323133313223222312   >>