program main
    implicit none
    
    integer(16) :: n
    
    read *, n
    
    if (mod(n-2, 2) == 1) then
        print '(A)', "1"
        stop
    end if
    
    if (mod(n-7, 4) == 1) then
        print '(A)', "1"
        stop
    end if
    
    print '(A)', "-1"
end program main