program sqrt
    implicit none
    integer :: i, j, k

    read *, i, j, k
!    print *, dble(i**0.50d0) 
!    print *, dble(j**0.50d0)
!    print *, dble(k**0.50d0)

    if (dble(dble(i**0.50d0) + dble(j**0.50d0)) < dble(k**0.50d0)) then
        print *, "Yes"
    else if (dble(dble(i**0.50d0) + dble(j**0.50d0)) > dble(k**0.50d0)) then
        print *, "No"
    else if (dble(dble(i**0.50d0) + dble(j**0.50d0)) == dble(k**0.50d0)) then

    end if

end program sqrt
