C1111233131211111211113313331323133313231333133313221333132211312131   >>    C111123313121111121111331333132313331323133313331322133313221131213   <<    C1111233131211111211113313331323133313231333133313221333132211312133   >>      C1111233131211111211113313331323133313231333133313221333132211312132   >>