한수진 입니다.

small = 'abcdefghijklmnopqrstuvwxyz' big = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' num = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] word = input() for i in range(len(word)): for j in range(len(small)): if word[i] == small[j]: num[j] += 1 if word[i] == big[j]: num[j] += 1 Max = 0 x = 0 for l in range(len(num)): if num[l] > Max: Max = num[l] find = big[l] x = Max count = 0..