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#include <cstdio>
using namespace std;
int sir[1000005];
int main()
{
freopen("elmaj.in", "r", stdin);
freopen("elmaj.out", "w", stdout);
int n;
scanf("%d", &n);
int nr = 0;
int vot;
for(int i = 0; i < n; i++)
{
scanf("%d", &sir[i]);
if(nr == 0)
{
nr++;
vot = sir[i];
}
else
{
if(vot == sir[i])
{
nr++;
}
else
{
nr--;
}
}
}
if(nr == 0)
{
printf("-1");
return 0;
}
nr = 0;
for(int i = 0; i < n; i++)
{
if(sir[i] == vot)
{
nr++;
}
}
if(nr >= (n / 2) + 1)
{
printf("%d %d", vot, nr);
}
else
{
printf("-1");
}
return 0;
}