Bigger power of two

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Problem

Output the smallest power of two that is bigger than input number.

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now post-mortem time, all source codes will be revealed

Sample input:_

3
1
4
1
5
9
2
6
5
3

Sample output:

4
2
8
2
8
16
4
8
8
4

Sample input:_

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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

Sample output:

2
4
4
8
8
8
8
16
16
16
16
16
16
16
16
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128
128

Sample input:_

1
1
2
3
5
8
13
21
34
55
89
144
233
377
610
987
1597
2584
4181
6765
10946
17711
28657
46368
75025
121393
196418
317811
514229
832040
1346269
2178309
3524578
5702887
9227465
14930352
24157817
39088169
63245986

Sample output:

2
2
4
4
8
16
16
32
64
64
128
256
256
512
1024
1024
2048
4096
8192
8192
16384
32768
32768
65536
131072
131072
262144
524288
524288
1048576
2097152
4194304
4194304
8388608
16777216
16777216
33554432
67108864
67108864

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