C1111133313331323223313331333133313331323131211113313112331312312212321   >>    C111113331333132322331333133313331333132313121111331311233131231221232   <<    C1111133313331323223313331333133313331323131211113313112331312312212323   >>      C1111133313331323223313331333133313331323131211113313112331312312212322   >>