C1111133313331323223313331333133313113313231331121111113313112221231   >>    C111113331333132322331333133313331311331323133112111111331311222123   <<    C1111133313331323223313331333133313113313231331121111113313112221233   >>      C1111133313331323223313331333133313113313231331121111113313112221232   >>