C11111211113313112113313331333133313331333132313331333133313331323112211211311   >>    C1111121111331311211331333133313331333133313231333133313331333132311221121131   <<    C11111211113313112113313331333133313331333132313331333133313331323112211211313   >>      C11111211113313112113313331333133313331333132313331333133313331323112211211312   >>