C1111133313331323223313331333133313113313231323133313113313232232321   >>    C111113331333132322331333133313331311331323132313331311331323223232   <<    C1111133313331323223313331333133313113313231323133313113313232232323   >>      C1111133313331323223313331333133313113313231323133313113313232232322   >>