#include<stdio.h>
int main()
{
    int count=0;
    char str[100];

    scanf("%[^\n]s",&str);
    for(i=0;str[i];i++){
    if(str[i] == 'a','e','i','o','u','A','E','I','O','U'){
        count=count+1;
    }
    else{
        printf("-1");
    }
    printf("%d",count);
    return 0;
}