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#include <cstdio>
using namespace std;
int n, v[1000010], nr, i, e;
int main(){
freopen("elmaj.in", "r", stdin);
freopen("elmaj.out", "w", stdout);
scanf("%d", &n);
for(i=1; i<=n; i++)
scanf("%d", &v[i]);
for(i=1; i<=n; i++)
{
if(nr==0)
nr=1, e=v[i];
else
{
if(e==v[i])
nr++;
else
nr--;
}
}
nr=0;
for(i=1; i<=n; i++)
if(v[i]==e)
nr++;
if(nr>n/2)
printf("%d %d\n", e, nr);
else
printf("-1\n");
return 0;
}