program abc
	implicit none
    integer(16) :: a,b,c
    double precision :: d,e,f,g

	read(*,*) a,b,c

	d = sqrt(dble(a))
	e = sqrt(dble(b))
	f = sqrt(dble(c))
    g = d + e
    
    if(g < f) then
    	write(*,*) "Yes"
    else
    	write(*,*) "No"
    endif
    
end program abc

