n=125000
from math import*
print(n*8)
a=range(10**9,10**9-n,-1)
b=tuple(round(10**9*sin(2*pi*i/n/8))for i in range(1,n+1))
c=tuple(round(10**9*sin(2*pi*i/n/8))for i in range(n,0,-1))
d=range(10**9-n+1,10**9+1)
for i in a:
	for j in b:print(i,j)
for i in c:
	for j in d:print(i,j)
for i in b:
	for j in a:print(-i,j)
for i in d:
	for j in c:print(-i,j)
for i in a:
	for j in b:print(-i,-j)
for i in c:
	for j in d:print(-i,-j)
for i in b:
	for j in a:print(i,-j)
for i in d:
	for j in c:print(i,-j)