a=input()
N=0
L=a[0]
for i in range(len(a)):
n=a.count(a[i])
if N<=n:
N=n
L=a[i]
print (L)
a=input()
N=0
L=a[0]
for i in range(len(a)):
n=a.count(a[i])
if N<=n:
N=n
L=a[i]
print (L)
名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
