#include <cstdio>

char inBuffer[1000000]; int p;

__attribute__((always_inline)) unsigned int get_number()
{
    unsigned int number = 0x0;

    while(inBuffer[p] < 0x30 || inBuffer[p] > 0x39)
    {
        ++p;
    }

    for(;;)
    {
        number = number * 0xA + inBuffer[p] - 0x30;

        ++p;

        if(inBuffer[p] < 0x30 || inBuffer[p] > 0x39) break;
    }

    return number;
}

unsigned int v[1000001];

int main()
{
    freopen("elmaj.in", "r", stdin);
    freopen("elmaj.out", "w", stdout);

    fread(inBuffer, 1, 1000000, stdin);

    unsigned int N = get_number(), x, candidate, unpaired = 0;

    for(unsigned int i = -~N; --i;)
    {
        x = get_number();

        if(x == candidate)
        {
            ++unpaired;
        }
        else
        {
            if(unpaired)
            {
                --unpaired;
            }
            else
            {
                candidate = x;

                unpaired = 0x1;
            }
        }

        v[i] = x;
    }

    unpaired = 0x0;

    for(unsigned int i = -~N; --i;)
    {
        unpaired += v[i] == candidate;
    }

    printf(unpaired > N >> 1 ? "%d %d" : "-1", candidate, unpaired);

    return 0x0;
}