x = int(eval(input()))

print((10 - x//200))
import sys, math, itertools, collections, bisect

input = lambda: sys.stdin.buffer.readline().rstrip().decode('utf-8') 

inf = float('inf') ;mod = 10**9+7 

mans = inf ;ans = 0 ;count = 0 ;pro = 1



read = sys.stdin.buffer.read

x = int(read())

print((10 - x//200))
x = int(eval(input()))
print((10 - x // 200))

import sys, math, itertools, collections, bisect

input = lambda: sys.stdin.buffer.readline().rstrip().decode("utf-8")
inf = float("inf")
mod = 10**9 + 7
mans = inf
ans = 0
count = 0
pro = 1
read = sys.stdin.buffer.read
x = int(read())
print((10 - x // 200))

-x = int(eval(input())) +import sys, math, itertools, collections, bisect + +input = lambda: sys.stdin.buffer.readline().rstrip().decode("utf-8") +inf = float("inf") +mod = 10**9 + 7 +mans = inf +ans = 0 +count = 0 +pro = 1 +read = sys.stdin.buffer.read +x = int(read())