C11111211113313112113313331333133313331333132313331333133313331333131233312131   >>    C1111121111331311211331333133313331333133313231333133313331333133313123331213   <<    C11111211113313112113313331333133313331333132313331333133313331333131233312133   >>      C11111211113313112113313331333133313331333132313331333133313331333131233312132   >>