#include<bits/stdc++.h> using namespace std; int main(){ int t; char l[50]; cin>>t; for(int i=0;i<t;i++){ cin>>l; for(int i=0;i<strlen(l);i++) l[i]>='a'?l[i]=='a'||l[i]=='e'||l[i]=='i'||l[i]=='o'||l[i]=='u'?l[i]-=32:l[i]=l[i]:l[i]<='Z'?l[i]!='a'&&l[i]!='e'&&l[i]!='i'&&l[i]!='o'&&l[i]!='u'?l[i]+=32:l[i]=l[i]; puts(l); } return 0; }