#include <iostream> #include <cstring> using namespace std; string zh(string a) { for(int i=0;i<a.size();i++){ if(a[i]>='A'&&a[i]<='Z') a[i]=a[i]+32; if(a[i]=='a'||a[i]=='e'||a[i]=='i'||a[i]=='o'||a[i]=='u'){ a[i]=a[i]-32; } } return a; } int main() { int n; cin>>n; string a[n]; for(int i=0;i<n;i++){ cin>>a[i]; } for(int i=0;i<n;i++) { cout<<zh(a[i])<<endl; } return 0; }