#include <bits/stdc++.h> using namespace std; int main() { int T; cin>>T; while(T--){ string s; cin>>s; for (int i=0;i<s.size();i++){ if (s[i]=='a' || s[i]=='o' || s[i]=='e' || s[i]=='i' || s[i]=='u'){ s[i]=toupper(s[i]); } else{ s[i]=tolower(s[i]); } } cout<<s<<"\n"; } return 0; }