C11111211113313112113313331333133313331333132313311211113322331   >>    C1111121111331311211331333133313331333133313231331121111332233   <<    C11111211113313112113313331333133313331333132313311211113322333   >>      C11111211113313112113313331333133313331333132313311211113322332   >>