#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main(){
    char str[101];
    if(fgets(str,sizeof(str),stdin)== NULL){
        printf("Invalid Input");
        return 0;
    }
    str[strcspn(str,"\n")]='\0';
    
    for(int i=0;str[i] !='\0\';i++){
        unsigned char ch=str[i];
        if(ch <32 || ch >126){
            printf("Invalid Input");
            return 0;
        }
    }
    for(int i=0;str[i] !='\0';i++){
        char ch=str[i];
        
        if(isalpha(ch)){
            char lower=tolower(ch);
            
            if(lower =='a' || lower =='e' || lower =='i' || lower =='o' || lower =='u'){
            }
            else{
                str[i] = tolower(ch);
            }
        }
    }
    printf("%s",str);
    return 0;
}