nbody = int(input("nbody"))
m = int((nbody/4)**(1./3.))
unitbox = 1./m
r = [[0.0]*nbody for _ in range(3)]
b = [[0.0]*4 for _ in range(3)]
b[0][0] = 0.0
b[1][0] = 0.0
b[2][0] = 0.0
b[0][1] = unitbox/2.0
b[1][1] = unitbox/2.0
b[2][1] = 0.0
b[0][2] = unitbox/2.0
b[1][2] = 0.0
b[2][2] = unitbox/2.0
b[0][3] = 0.0
b[1][3] = unitbox/2.0
b[2][3] = unitbox/2.0
l = 1
for i in range(m):
    for j in range(m):
        for k in range(m):
            for n in range(0, 4):
                r[0][l-1] = b[0][n] + i*unitbox
                r[1][l-1] = b[1][n] + j*unitbox
                r[2][l-1] = b[2][n] + k*unitbox
                l += 1
for l in range(nbody):
    print(r[0][l], r[1][l], r[2][l])