pts = {}
pts[(0, 0)] = 0
x, y = 0, 0
dx, dy = 1, 0
i, c = 0, 0
while c < 10**2:    
    for _ in range(2):
        for j in range(i + 1):
            c += 1
            x += dx
            y += dy
            pts[(x, y)] = c      
        dx, dy = -dy, dx
    i += 1
print(pts)