#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <set>
#include <map>
#include <queue>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstring>
#include <cctype>
#include <cassert>
#include <limits>
#include <functional>
#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))
#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))
#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))
#if defined(_MSC_VER) || __cplusplus > 199711L
#define aut(r,v) auto r = (v)
#else
#define aut(r,v) __typeof(v) r = (v)
#endif
#define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it)
#define all(o) (o).begin(), (o).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset(m,v,sizeof(m))
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
using namespace std;
typedef vector<int> vi; typedef pair<int, int> pii; typedef vector<pair<int, int> > vpii; typedef long long ll;
template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }
template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }

bool ok(int a, int b, int c) {
	return a != b && a != c && b != c && ((b < a && b < c) || (a < b && c < b));
}

int main() {
	int N;
	while(~scanf("%d", &N)) {
		vector<int> K(N);
		for(int i = 0; i < N; ++ i)
			scanf("%d", &K[i]);
		vector<bool> dp(1 << N);
		vi ans(3, -1);
		rep(i, 1 << N) {
			bool x = false;
			rep(a, N) if(i >> a & 1) reu(b, a + 1, N)if(i >> b & 1) reu(c, b + 1, N) if(i >> c & 1) {
				if(ok(K[a], K[b], K[c])) {
					x |= !dp[i & ~(1 << a) & ~(1 << b) & ~(1 << c)];
					if(i == (1 << N) - 1 && ans[0] == -1 && x)
						ans = {a, b, c};
				}
			}
			dp[i] = x;
		}
		for(int i = 0; i < 3; ++ i) {
			if(i != 0) putchar(' ');
			printf("%d", ans[i]);
			if(ans[i] == -1) break;
		}
		puts("");
	}
	return 0;
}