private int tr_187(char ch)
    {
        if(chin(ch,';','q')) return 57;
        if(cheq(ch,'r')) return 178;
        if(chin(ch,'s','~')) return 57;
        if(chin(ch,' ','9')) return 57;
        if(chin(ch,'\t','\n')) return 57;
        return 0;
    }