def designerPdfViewer(h, word):
    # Write your code here
    
    tallest = None
    letter_count = len(word)
    
    for i in word:
        index = ord(i) - 97
        current_word_height = h[index]
        
        if not tallest or tallest < current_word_height:
            tallest = current_word_height
            
    return tallest * letter_count