#include<bits/stdc++.h>
typedef long long   ll;
#define endl        '\n'
#define F           first
#define S           second
#define pb          push_back
#define yes         cout<<"YES\n"
#define no          cout<<"NO\n"
#define all(x)      x.begin(),x.end()
#define allr(x)     x.rbegin(),x.rend()
#define error1(x)   cerr<<#x<<" = "<<(x)<<endl
#define error2(a,b) cerr<<"("<<#a<<", "<<#b<<") = ("<<(a)<<", "<<(b)<<")\n";
#define coutall(v)  for(auto &it: v) cout<<it<<" "; cout<<endl;
#define _ASRafi__   ios::sync_with_stdio(false); cin.tie(0);
using namespace std;

void solve()
{
    string s1;
    cin >> s1;
    short valid = 0;
    if(s1.size() >= 8)
    {
        valid += 1;
    }
    for(char ch = 'a'; ch <= 'z'; ch++) 
    {
        if(count(all(s1), ch))
        {
            valid += 1;
            break;
        }
    }
    for(char ch = 'A'; ch <= 'Z'; ch++) 
    {
        if(count(all(s1), ch))
        {
            valid += 1;
            break;
        }
    }
    for(char ch = '0'; ch <= '9'; ch++) 
    {
        if(count(all(s1), ch))
        {
            valid += 1;
            break;
        }
    }
    string s2 = "!@#$%^&*()";
    for(auto &ch: s2)
    {
        if(count(all(s1), ch))
        {
            valid += 1;
            break;
        }
    }
    if(valid == 5)
    {
        cout << "valid\n";
    }
    else
    {
        cout << "invalid\n";
    }
    return;
}
int32_t main()
{
    _ASRafi__;
    int tc = 1;
    cin >> tc;
    for (int t = 1; t <= tc; t++)
    {
        // cout << "Case " << t << ": ";
        solve();
    }
    return 0;
}