백준 8949 대충 더해

def sol(s1, s2):
    ans = ''
    if len(s1)<len(s2):
        s1=s1.zfill(len(s2))
    else:
        s2 = s2.zfill(len(s1))
    for i in range(len(s1)):
        ans+= str(int(s1[i])+int(s2[i]))
    return ans

s1,s2=map(str, input().split())

print(sol(s1,s2))

https://www.acmicpc.net/problem/8949

8949번: 대충 더해

Type casting 과 숫자가 자리가 다를경우 앞에 0을 채워줘야하는데 이때 string.zfill() 함수 사용하면 편합니다

In number's length are different , You can use zfill() function, and type casting

 

https://docs.python.org/3/library/stdtypes.html

Built-in Types — Python 3.10.8 documentation