n=1000000
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)
print('\n'.join(f'{i} {j}'for i,j in zip(a,b)))
print('\n'.join(f'{i} {j}'for i,j in zip(c,d)))
print('\n'.join(f'{-i} {j}'for i,j in zip(b,a)))
print('\n'.join(f'{-i} {j}'for i,j in zip(d,c)))
print('\n'.join(f'{-i} {-j}'for i,j in zip(a,b)))
print('\n'.join(f'{-i} {-j}'for i,j in zip(c,d)))
print('\n'.join(f'{i} {-j}'for i,j in zip(b,a)))
print('\n'.join(f'{i} {-j}'for i,j in zip(d,c)))