C111112111133131121133133313331323133313221211111333133313231333132222321313111   >>    C11111211113313112113313331333132313331322121111133313331323133313222232131311   <<    C111112111133131121133133313331323133313221211111333133313231333132222321313113   >>      C111112111133131121133133313331323133313221211111333133313231333132222321313112   >>