function roundClaimICOKeys(uint256 _rID)
        private
    {
        
        round_[_rID].eth = round_[_rID].ico;
                
        
        round_[_rID].keys = (round_[_rID].ico).keys();
        
        
        round_[_rID].icoAvg = calcAverageICOPhaseKeyPrice(_rID);
                
        
        uint256 _ppt = ((round_[_rID].icoGen).mul(1000000000000000000)) / (round_[_rID].keys);
        uint256 _dust = (round_[_rID].icoGen).sub((_ppt.mul(round_[_rID].keys)) / (1000000000000000000));
        if (_dust > 0)
            round_[_rID].pot = (_dust).add(round_[_rID].pot);   
                
        
        round_[_rID].mask = _ppt.add(round_[_rID].mask);
    }