1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
b = [1,2,3]
print b
print b[0]
print b[1]
c = b
print c[0]
print c[1]
b[0] = 10
print b
print c
c[1] = 20
print b
print c
print len (b)
a = [1,2,3]
b = [1,2,3]
assert a != b
a=[[0,0,0],[0,0,0],[0,0,0]]
assert eq(a,[[0,0,0],[0,0,0],[0,0,0]])
a[0][1]=7
a[1][1]=8
a[2][1]=9
assert eq(a,[[0,7,0],[0,8,0],[0,9,0]])
a = [1,2,3]
a[0]*=2
a[1]*=2
a[2]*=2
assert eq(a,[2,4,6])
print "ok"