#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>

  void mayus(char* vocales){
      for(int i; i < 50; i++){
        if(vocales[i] == '\0'){
            break;
        }
        if (vocales[i] ==  'a' || vocales[i] == 'e' || vocales[i] == 'i' || vocales[i]== 'o'   || vocales[i] =='u'){
            vocales[i] = toupper(vocales[i]);
            printf("%c", vocales[i]);
        }else {
            printf("%c", vocales[i]);
        }
    }
  }

    int main(){
    char vocales[50];
    gets(vocales);
    mayus(vocales);

    return 0;

    }