program t
Implicit none
Integer i,n,h
Real k
Read*,n
K=h(n)/86400.0
End program
Recursive function h(n) result(d)
Integer d,n
!Do i=1,n
If(n==1)then
d=1
Else
d=2*h(n-1)+1
End if
!End do
end function
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