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

    read *, i, j, k

    if ((real(i**0.50q0,kind=16) + real(j**0.50q0,kind=16)) < real(k**0.50q0,kind=16)) then
        print *, "Yes"
    else if ((real(i**0.50q0,kind=16) + real(j**0.50q0,kind=16)) > real(k**0.50q0,kind=16)) then
        print *, "No"
    else if ((real(i**0.50q0,kind=16) + real(j**0.50q0,kind=16)) == real(k**0.50q0,kind=16)) then

    end if

end program sqrt
