#include<stdio.h>
#include<string.h>
int main()
{
while (true)
{
int ans = 0;
char arr[256];
fgets(arr, sizeof(arr), stdin);
if (arr[0] == '#')
break;
for (int i = 0; i < strlen(arr); i++)
{
int N;
if (arr[i] >= 'a' && arr[i] <= 'z')
N = arr[i] - 'a';
else if (arr[i] >= 'A' && arr[i] <= 'Z')
N = arr[i] - 'A';
else continue;
if (N == 0 || N == 4 || N == 8 || N == 14 || N == 20)
ans++;
}
printf("%d\n", ans);
}
return 0;
}
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