C11111211113313112113313331333132313331322113121111331333133112121221   >>    C1111121111331311211331333133313231333132211312111133133313311212122   <<    C11111211113313112113313331333132313331322113121111331333133112121223   >>      C11111211113313112113313331333132313331322113121111331333133112121222   >>