C11111333133313232233133313331333133313233231331121111331211331333132321   >>    C1111133313331323223313331333133313331323323133112111133121133133313232   <<    C11111333133313232233133313331333133313233231331121111331211331333132323   >>      C11111333133313232233133313331333133313233231331121111331211331333132322   >>