import json

a = json.loads(input())

x = {}

for item in a["response"]["items"]:
    if "bdate" not in item:
        continue
    mdy = item["bdate"].split(".")
    if len(mdy) == 3:
        year = int(mdy[2])
        age = 2018 - year

        if age in x:
            x[age] += 1
        else:
            x[age] = 1

out = list(x.items())
out.sort()

print(sorted(out, key=lambda b: -b[1]))