import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

R = 10**8
n = 10**6
from math import cos, sin, floor, pi

def round(x):
    return floor(x + 0.5)
print(n, flush=True)
for i in range(n):
    x = round(R * cos(i * 2 * pi / n))
    y = round(R * sin(i * 2 * pi / n))
    print(x, y, flush=True)