C11111211113313112113313331333133313331333132313331333133313113313332331331   >>    C1111121111331311211331333133313331333133313231333133313331311331333233133   <<    C11111211113313112113313331333133313331333132313331333133313113313332331333   >>      C11111211113313112113313331333133313331333132313331333133313113313332331332   >>