C3213322333133313113313221211113313331333133313231131131233123133211   >>    C321332233313331311331322121111331333133313331323113113123312313321   <<    C3213322333133313113313221211113313331333133313231131131233123133213   >>      C3213322333133313113313221211113313331333133313231131131233123133212   >>