private int tr_69(char ch)
    {
        if(chin(ch,'f','~')) return 57;
        if(chin(ch,'b','d')) return 57;
        if(chin(ch,' ','9')) return 57;
        if(cheq(ch,'e')) return 137;
        if(chin(ch,'\t','\n')) return 57;
        if(cheq(ch,'a')) return 198;
        if(chin(ch,';','`')) return 57;
        return 0;
    }