n=int(input()) l=[] d={"a":1,"e":1,"i":1,"o":1,"u":1} for i in range (n): m=input() l.append(m) for i in l: #循环每一个字符 for j in range (len(i)): #如果字符的小写在字典里 if i[j].lower() in d: #说明是元音字母 print(i[j].upper(),end="") else: print(i[j].lower(),end="") print("")