1.0 KB | 1059 chars
"""
[1308: D-Day](https://www.acmicpc.net/problem/1308)
Tier: Silver 5
Category: implementation
"""
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta, date
SYS_INPUT = True
RECURSION_LIMIT = 10 ** 7
SET_RECURSION = False
BLANK = " "
if SET_RECURSION:
sys.setrecursionlimit(RECURSION_LIMIT)
inp = lambda : sys.stdin.readline().rstrip() if SYS_INPUT else input()
mii = lambda : [*map(int,inp().split())]
mfi = lambda : [*map(float,inp().split())]
ii = lambda : int(inp())
fi = lambda : float(inp())
isplit = lambda : inp().split()
p = print
def gcd(a, b): return gcd(b, a % b) if b > 0 else a
def lcm(a, b): return a * b // gcd(a, b)
def solve():
a = date(*map(int,input().split()))
b = date(*map(int,input().split()))
if a.year + 1000 < b.year or \
(a.year + 1000 == b.year and (a.month < b.month or (a.month == b.month and a.day <= b.day))):
print("gg")
else:
print(f"D-{(b-a).days}")
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()