1 #include 
     
       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 }