#include <cstdio>
int main() {
  char ch;
  while (1) {
    int arr[127] = {}, max = 0;
    while ((ch = getchar()) != '\n') {
      if (ch == EOF) return 0;
      if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) ++arr[ch];
    }
    for (int i = 'A'; i <= 'z'; ++i) if (arr[i] > max) max = arr[i];
    for (int i = 'A'; i <= 'z'; ++i) if (arr[i] == max) putchar(i);
    printf(" %d\n", max);
  }
}