class KeyDungeonDiv2

{

public:

    int countDoors(vector <int> doorR, vector <int> doorG, vector <int> keys)

    {

        int res = ;

        for(int i =  ; i < doorR.size(); i ++){

            if(doorR[i]  <= keys[]+keys[] && doorG[i] <= keys[]+keys[] && doorR[i] + doorG[i] <=keys[]+keys[]+keys[]) res ++;

        }

        return res;

    }

};