#include <bits/stdc++.h>

using namespace std;

int main() {
    //0:可以销售，-1：已经销售
    int a[100];
    for (int i = 0; i < 100; i++) {
        a[i] = 0;
    }

    int n;
    cin >> n;
    for (int i = 0; i < n; i++) {
        int p;
        cin >> p;
        //假设输入的是2，那么就是从小到大找连续两个
        //(1)从头遍历可能的座位
        bool success = false;
        for (int j = 0; j < 100; j++) {
            if (a[j] == 0) {
                bool can = true;
                //向后找连续p个,注意是5个人一排~！
                for (int k = j + 1; k < j + p; k++) {
                    if (a[k] == -1 || (j % 10 <= 4 && k % 10 >= 5) ||
                        (j % 10 >= 5 && k % 10 <= 4)) {
                        can = false;
                        break;
                    }
                }
                if (can) {
                    a[j] = -1;
                    cout << j + 1 << " ";
                    for (int k = j + 1; k < j + p; k++) {
                        a[k] = -1;
                        cout << k + 1 << " ";
                    }
                    cout << endl;
                    success = true;
                    break;
                }
            }
        }
        if (!success) {
            int count = 0;
            //从小的开始插空
            for (int j = 0; j < 100; j++) {
                if (a[j] == 0) {
                    a[j] = -1;
                    cout << j + 1 << " ";
                    count++;
                }
                //如果达到个数
                if (count == p) {
                    cout << endl;
                    break;
                }
            }
        }
    }
    return 0;
}