#include<bits/stdc++.h> using namespace std; int main(){ int t; char l[51]; cin>>t; for(int i=0;i<t;i++){ cin>>l; for(int i=0;i<strlen(l);i++){ if(l[i]>='a') if(l[i]=='a'||l[i]=='e'||l[i]=='i'||l[i]=='o'||l[i]=='u') l[i]-=32; if(l[i]<='Z') {if(l[i]!='A'&&l[i]!='E'&&l[i]!='I'&&l[i]!='O'&&l[i]!='U') l[i]+=32;} } puts(l); for(int i=0;i<strlen(l);i++) l[i]=0; } return 0; }