1 #include <bits/stdc++.h>
2 #define _for(i,a,b) for(int i = (a);i < (b);i ++)
3 #define pb push_back
4 using namespace std;
5
6 int main()
7 {
8 string s;
9 cin >> s;
10 if(s.size()<6){
11 cout << "Invalid";return 0;
12 }
13 int f1 = 0,f2 = 0;
14 _for(i,0,s.size())
15 {
16 if(isdigit(s[i]))
17 f1 = 1;
18 else if(isalpha(s[i]))
19 f2 = 1;
20 }
21 if((!f1)||(!f2)){
22 cout << "Invalid";return 0;
23 }
24 _for(i,0,s.size()-2)
25 if(tolower(s[i])==tolower(s[i+1])&& tolower(s[i])==tolower(s[i+2]))
26 {
27 cout << "Invalid";return 0;
28 }
29 cout << "Valid";
30 return 0;
31 }
