#include "cstdio"
#include "cmath"
#include "cstring"
#include "iostream"
#include "algorithm"
using namespace std;
#define LL long long
#define N 250002
int dp[N];
int v[N];
int solve(int num,int W)
{
    for(int i = 0;i < num;i++)
    {
        for(int j = W;j >= v[i];j--)
        {
            dp[j] = max(dp[j],dp[j-v[i]]+v[i]);
        }
    }
    return dp[W];
}
int main()
{
    int t;
    while(scanf("%d",&t),(t>0))
    {
        memset(dp,0,sizeof(dp));
        memset(v,0,sizeof(v));
        int num=0,sum=0;
        int v1,n1;
        while(t--)
        {
            scanf("%d%d",&v1,&n1);
            for(int i=0;i<n1;i++)
            {
                v[num++]=v1;
                sum+=v1;
            }
        }
        int W=sum/2;
        int s=solve(num,W);
        printf("%d %d\n",sum-s,s);
    }
    return 0;
}