C11111333133313232233133313331333133313231333133311232323133121   >>    C1111133313331323223313331333133313331323133313331123232313312   <<    C11111333133313232233133313331333133313231333133311232323133123   >>      C11111333133313232233133313331333133313231333133311232323133122   >>