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

    scanf("%[^\n]s",&str[100]);
    for(int i=0;i<strlen(str);i++){
    if(str[i] =='a'||str[i]=='e'||str[i]=='i'||str[i]=='o'||str[i]=='u'||str[i]=='A'||str[i]='E'||str[i]='I'||str[i]=='O'||str[i]=='U'){
        count=count+1;
    }
    else{
        printf("-1");
    }
    
    printf("%d",count);
    }
    return 0;
}