C1111121111331311211331333133313331333133313231331121111331333133313233221   >>    C111112111133131121133133313331333133313331323133112111133133313331323322   <<    C1111121111331311211331333133313331333133313231331121111331333133313233223   >>      C1111121111331311211331333133313331333133313231331121111331333133313233222   >>