C11111211113313112113313331333133313331333132313331333133313113313223313233331   >>    C1111121111331311211331333133313331333133313231333133313331311331322331323333   <<    C11111211113313112113313331333133313331333132313331333133313113313223313233333   >>      C11111211113313112113313331333133313331333132313331333133313113313223313233332   >>