C111112111133131121133133313331333133313331323221211113313231333133313133112131   >>    C11111211113313112113313331333133313331333132322121111331323133313331313311213   <<    C111112111133131121133133313331333133313331323221211113313231333133313133112133   >>      C111112111133131121133133313331333133313331323221211113313231333133313133112132   >>