s = input()
a = [0]*26
for t in s:
    if a[ord(t)-ord('a')] > 0:
        continue
    a[ord(t)-ord('a')] = s.count(t) 
maxx = max(a)
for i in range(26):
    if a[i] == maxx:
        print(chr(i+ord('a')))
        print(a[i])
        break