C11111211113313112113313331333133313221333133313113313113311322131   >>    C1111121111331311211331333133313331322133313331311331311331132213   <<    C11111211113313112113313331333133313221333133313113313113311322133   >>      C11111211113313112113313331333133313221333133313113313113311322132   >>