Baekjoon 2033

문제 확인하기

def getAnswer(N):
    compare_num = 10
    while N > compare_num:
        if N % compare_num >= compare_num // 2:
            N += compare_num
        N -= (N % compare_num)
        compare_num *= 10
    return N

N = int(input())
print(getAnswer(N=N))