C11111333133313232233133313331333133313233231331121111331312122321   >>    C1111133313331323223313331333133313331323323133112111133131212232   <<    C11111333133313232233133313331333133313233231331121111331312122323   >>      C11111333133313232233133313331333133313233231331121111331312122322   >>