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package class25;
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// 测试链接 : https://www.nowcoder.com/practice/2a2c00e7a88a498693568cef63a4b7bb
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// 如果在牛客上做题，可以用如下的方式来做
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// 提交如下的代码，并把主类名改成"Main"
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// 可以直接通过
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class Code01_MonotonousStackForNowcoder {
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public static int[] arr = new int[1000000];
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public static int[][] ans = new int[1000000][2];
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// stack1 : 相等值的位置也放
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// stack2 : 只放不相等值的最后一个位置
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// 比如 : arr = { 3, 3, 3, 4, 4, 6, 6, 6}
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// 位置 0 1 2 3 4 5 6 7
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// 如果位置依次压栈，
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// stack1中的记录是（位置） : 0 1 2 3 4 5 6 7
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// stack1中的记录是（位置） : 2 4 7
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public static int[] stack1 = new int[1000000];
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public static int[] stack2 = new int[1000000];
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public static void main(String[] args) throws IOException {
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BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(br.readLine());
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String[] strs = br.readLine().split(" ");
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for (int i = 0; i < n; i++) {
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arr[i] = Integer.parseInt(strs[i]);
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}
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getNearLess(n);
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StringBuilder builder = new StringBuilder();
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for (int i = 0; i < n; i++) {
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builder.append(ans[i][0] + " " + ans[i][1] + "\n");
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}
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System.out.println(builder.toString());
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}
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public static void getNearLess(int n) {
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int stackSize1 = 0;
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int stackSize2 = 0;
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for (int i = 0; i < n; i++) {
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while (stackSize1 > 0 && arr[stack1[stackSize1 - 1]] > arr[i]) {
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int curIndex = stack1[--stackSize1];
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int left = stackSize2 < 2 ? -1 : stack2[stackSize2 - 2];
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ans[curIndex][0] = left;
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ans[curIndex][1] = i;
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if (stackSize1 == 0 || arr[stack1[stackSize1 - 1]] != arr[curIndex]) {
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stackSize2--;
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}
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}
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if (stackSize1 != 0 && arr[stack1[stackSize1 - 1]] == arr[i]) {
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stack2[stackSize2 - 1] = i;
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} else {
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stack2[stackSize2++] = i;
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}
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stack1[stackSize1++] = i;
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}
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while (stackSize1 != 0) {
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int curIndex = stack1[--stackSize1];
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int left = stackSize2 < 2 ? -1 : stack2[stackSize2 - 2];
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ans[curIndex][0] = left;
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ans[curIndex][1] = -1;
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if (stackSize1 == 0 || arr[stack1[stackSize1 - 1]] != arr[curIndex]) {
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stackSize2--;
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}
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}
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}
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}
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