function claimHodlRewardsForMultipleAddresses(address[] _beneficiaries) external returns (bool) {
        require(block.timestamp.sub(hodlerTimeStart) <= 450 days ); 
        uint8 length = uint8(_beneficiaries.length);
        for (uint8 i = 0; i < length ; i++) {
            if(hodlerStakes[_beneficiaries[i]].stake > 0 && (hodlerStakes[_beneficiaries[i]].claimed3M == false || hodlerStakes[_beneficiaries[i]].claimed6M == false || hodlerStakes[_beneficiaries[i]].claimed9M == false || hodlerStakes[_beneficiaries[i]].claimed12M == false)) { 
                require(claimHodlRewardFor(_beneficiaries[i]));
            }
        }
        return true;
    }