def METHOD_NAME (string):
    matchingParens = []
    startIdx = -1
    endIdx = -1
    for i in range(0, len(string), 1):
        if (string[i] == "("):
            startIdx = i
        elif(string[i] == ")"):
            endIdx = i
            matchingParens.append([startIdx, endIdx])
    return matchingParens