C11111211113313112113313331333133313331333132313331333133112111112211   >>    C1111121111331311211331333133313331333133313231333133313311211111221   <<    C11111211113313112113313331333133313331333132313331333133112111112213   >>      C11111211113313112113313331333133313331333132313331333133112111112212   >>