8635번: Zliczacz liter ↗

import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print


def solve():
  d = {}
  
  n = ii()
  for _ in range(n):
    s = input().replace(" ", "")
    
    for i in s:
      d[i] = d.get(i, 0) + 1
  
  d = sorted(d.items())
  
  for k, v in d:
    if k <= 'Z':
      continue
    print(k, v)

  for k, v in d:
    if k > 'Z':
      continue
    print(k, v)
  

if __name__ == "__main__":
  tc = 1

  for t in range(1, tc+1):
    ret = solve()