import numpy as np
from numpy import linalg as LA
#f = open("teste.txt","w")
w=1
v=2

matrix = np.zeros((100,100))
for j in range (0,100):
	for i in range (0,100):
		if (i % 2):
			if (i==j+1):
				matrix[i][j]=w
		if (j % 2):
			if (i==j-1):
				matrix[i][j]=w
		if ((i+1) % 2):
			if (i==j+1):
				matrix[i][j]=v
		if ((j+1) % 2):
			if (i==j-1):
				matrix[i][j]=v

b=LA.eigvals(matrix)
np.savetxt('test.txt',c)