#include <cstdio>
#include <unistd.h>

char inBuffer[16777216]; size_t p = -1;

__attribute__((always_inline)) size_t get_number()
{
    size_t number = 0x0;

    for(++p; inBuffer[p] > 0x2F; ++p)
    {
        number = number * 0xA + inBuffer[p] - 0x30;
    }

    return number;
}

size_t v[1000001];

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

    read(STDIN_FILENO, inBuffer, 16777216);

    size_t N = get_number(), x, candidate, unpaired = 0;

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

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

    return 0x0;
}