C11111333133313232233133313331333133313331322133313231333132313221   >>    C1111133313331323223313331333133313331333132213331323133313231322   <<    C11111333133313232233133313331333133313331322133313231333132313223   >>      C11111333133313232233133313331333133313331322133313231333132313222   >>