C11111211113313112113313331333133313331333132233131133133313131   >>    C1111121111331311211331333133313331333133313223313113313331313   <<    C11111211113313112113313331333133313331333132233131133133313133   >>      C11111211113313112113313331333133313331333132233131133133313132   >>