private int tr_75(char ch)
    {
        if(chin(ch,'d','e')) return 57;
        if(chin(ch,'g','~')) return 57;
        if(chin(ch,' ','9')) return 57;
        if(cheq(ch,'f')) return 22;
        if(chin(ch,'\t','\n')) return 57;
        if(cheq(ch,'c')) return 161;
        if(chin(ch,';','b')) return 57;
        return 0;
    }