C1111133313331323223313331333133313331333131121133133313233332321   >>    C111113331333132322331333133313331333133313112113313331323333232   <<    C1111133313331323223313331333133313331333131121133133313233332323   >>      C1111133313331323223313331333133313331333131121133133313233332322   >>