题解 | #删除字符串中出现次数最少的字符#

s = input().lower()
dic = {}
res = ''
for k in s:
    if k not in dic:
        dic[k] = 1
    else:
        dic[k] += 1
Min = min(dic.values())
for kk in s:
    if dic[kk] != Min:
        res += kk

print(res)

### 20240617