C1111233131211111211113313331333133313112113121111113313331322331333211121   >>    C111123313121111121111331333133313331311211312111111331333132233133321112   <<    C1111233131211111211113313331333133313112113121111113313331322331333211123   >>      C1111233131211111211113313331333133313112113121111113313331322331333211122   >>