"PiE" would have an out put of [0, 2]

"HaH" has an output of [0,0]

import re

pattern = re.compile(r'^[A-Zd]+$')
elemList = []

def capitals(word):
    pattern.match(word)
    for w in word:
        if w != w.lower():
            a = word.index(w)
            elemList.append(a)
    return elemList