# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1280286 | Kerim | Rack (eJOI19_rack) | Pypy 3 | 139 ms | 50384 KiB |
n, k = map(int, input().split())
k -= 1
a = 0
for i in range(0, n):
if (k>>(n-i-1)&1):
a += 2**i
print((a+1)%int(1e9+7))
Compilation message (stdout)
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