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#include <iostream>
#include <cstdio>
using namespace std;
long long n,velemCit[1000002],elemMaj,cnt=1;
int main()
{
freopen("elmaj.in","r",stdin);
freopen("elmaj.out","w",stdout);
scanf("%lld",&n);
scanf("%lld",&elemMaj);
velemCit[1]=elemMaj;
for(int i=2;i<=n;i++)
{
scanf("%lld",&velemCit[i]);
if(velemCit[i]==elemMaj)
cnt++;
else
cnt--;
if(cnt==0)
{
elemMaj=velemCit[i];
cnt=1;
}
}
cnt=0;
for(int i=1;i<=n;i++)
{
if(velemCit[i]==elemMaj)
cnt++;
}
if(cnt>=n/2+1)
printf("%lld %lld",elemMaj,cnt);
else
printf("-1");
return 0;
}