import io
import sys

sys.stdin = io.StringIO('lanqiao')

s_in = input()
counter = [0] * 26
count_max = 0
for ch in s_in:
    idx = ord(ch) - ord('a')
    counter[idx] += 1
    count_max = max(count_max, counter[idx])

for i in range(26):
    if count_max == counter[i]:
        print(chr(i + ord('a')))
        print(count_max)
        break