int n;

BadLengthException(int length) {

n = length;

}

int what() {

return n;

}

bool isValid = true;

int n = username.length();

if(n < 5) {

throw BadLengthException(n);

}

for(int i = 0; i < n-1; i++) {

if(username[i] == 'w' && username[i+1] == 'w') {

isValid = false;

}

}

return isValid;

int T; cin >> T;

while(T--) {

string username;

cin >> username;

try {

bool isValid = checkUsername(username);

if(isValid) {

cout << "Valid" << '\n';

} else {

cout << "Invalid" << '\n';

}

} catch (BadLengthException e) {

cout << "Too short: " << e.what() << '\n';

}

}

return 0;

}