C1111133313331323223313331333133313233231311211331333132322121111331313333231   >>    C111113331333132322331333133313331323323131121133133313232212111133131333323   <<    C1111133313331323223313331333133313233231311211331333132322121111331313333233   >>      C1111133313331323223313331333133313233231311211331333132322121111331313333232   >>