C11111211113313112113313331333133313113313331333132233133313231322131   >>    C1111121111331311211331333133313331311331333133313223313331323132213   <<    C11111211113313112113313331333133313113313331333132233133313231322133   >>      C11111211113313112113313331333133313113313331333132233133313231322132   >>