program name
    use,intrinsic :: iso_fortran_env
    implicit none
    integer(int64):: a,b,c,d
    
    read*, a,b,c
    d = (c-(a+b))

    if (d <= 0 ) then
        print'(a)', 'No'
        stop
    end if

    if (d*d > 4*a*b) then
        print'(a)', 'Yes'
    else
        print'(a)', 'No'
    end if
end program name