#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

int op(int a, int b) {
    return max(a,b);
}

int e() {
    return 0;
}

int main()
{
    int n;
    cin >> n;
    vector<int> p(n);
    rep(i,n) cin >> p[i];
    rep(i,n) --p[i];
    segtree<int , op, e> seg(n);
    vector<int> dp(n);
    rep(i,n) {
        int val = seg.prod(0,p[i]);
        dp[i] = val+1;
        seg.set(p[i], val+1);
    }
    vector<int> x(n+1,1e9), y(n+1,1e9);
    rep(i,n) {
        x[dp[i]] = min(i+1, x[dp[i]]);
        y[dp[i]] = min(p[i]+1, y[dp[i]]);
    }
    rep(i,n) {
        if(x[i+1]==1e9 || y[i+1]==1e9) {
            break;
        }
        cout << x[i+1] << " " << y[i+1] << endl;
    }
    return 0;
}