C11111333133313232233133313331333133313331312111133133312111111331323133313221   >>    C1111133313331323223313331333133313331333131211113313331211111133132313331322   <<    C11111333133313232233133313331333133313331312111133133312111111331323133313223   >>      C11111333133313232233133313331333133313331312111133133312111111331323133313222   >>