function preSaleFinishedProcess( uint timeOfRequest) private returns(bool) {
        
        require(timeOfRequest >= sale.start && timeOfRequest <= sale.end);
        if (preSale.tokens != 0) {
            uint savePreSaleTomens = preSale.tokens;
            preSale.tokens = 0;
            sale.tokens += savePreSaleTomens;
        }
        return true;
    }