#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;

//template
#define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define ALL(v) (v).begin(),(v).end()
using ll=long long int;
const int inf = 0x3fffffff; const ll INF = 0x1fffffffffffffff; const double eps=1e-12;
template<typename T>inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<typename T>inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
//end



int main(){
   int n,c;
   cin>>n>>c;
   vector<int> p(n);
   rep(i,0,n)cin>>p[i];
   using P=array<int,2>;
   vector<P> cs(c);
   rep(i,0,c)cin>>cs[i][0]>>cs[i][1];

   sort(ALL(p),greater<int>());
   bitset<5010> used;
   ll res=0;
   rep(i,0,n){
      int add=p[i],id;
      rep(j,0,c)if(!used[j]){
         int sub;
         if(cs[j][0]==1)sub=max(0,p[i]-cs[j][1]);
         else sub=p[i]/100*(100-cs[j][1]);
         if(chmin(add,sub))id=j;
      }
      used[id]=1;
      res+=add;
   }
   cout<<res<<'\n';
   return 0;
}