HackerEarth What is the string made of? problem solution

In this HackerRank What is the string made of? problem solution You are given a string, which contains entirely decimal digits (0-9). Each digit is made of a certain number of dashes, as shown in the image below. For instance, 1 is made of 2 dashes, 8 is made of 7 dashes, and so on.

You have to write a function that takes this string message as an input and returns a corresponding value in terms of a number. This number is the count of dashes in the string message.

a = raw_input()
ans = 0
for i in a:
    if i == '0':
        ans += 6
    if i == '1':
        ans += 2
    if i == '2':
        ans += 5
    if i == '3':
        ans += 5
    if i == '4':
        ans += 4
    if i == '5':
        ans +=5
    if i == '6':
        ans += 6
    if i == '7':
        ans += 3
    if i == '8':
        ans += 7
    if i == '9':
        ans += 6
print ans