ClueLess Rishi Python Answers

ClueLess Rishi Answer in Python
Source Code
num = list(map(int,input()))
ans = []
cou = 0
num.append(0)
for i in num:
    if i == 1:
        cou += i
    else:
        ans.append(str(cou))
        cou = 0
print("".join(ans))