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August 29, 2015 14:09
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| mod = 1000000007 | |
| pre = [1] | |
| for _ in xrange(100000): | |
| pre.append(2*pre[-1] % mod) | |
| for t in xrange(1, int(raw_input()) + 1): | |
| n = int(raw_input()) - 1 | |
| if n: | |
| print 'Case {0}: {1}'.format(t, (n + 2)*pre[n - 1] % mod) | |
| else: | |
| print 'Case {0}: 1'.format(t) |
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