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

int main() {
    char c;
//Write a program that will accept a series of characters, display the vowels int
// small letters and display the consonants in capital letters

    while((c=getchar())!='\n')
    {
        if(c=='a')||(c=='e')||(c=='i')||(c=='o')||(c=='u')||(c=='A')||(c=='E')||(c=='I')||(c=='O')||(c=='U')
        putchar(tolower(c));
        
        else
        putchar(toupper(c));
    }
    
    return 0;
}