29.40∘C29.40^{\circ} \mathrm{C}29.40∘C
39.40∘C39.40^{\circ} \mathrm{C}39.40∘C
49.40∘C49.40^{\circ} \mathrm{C}49.40∘C
19.40∘C19.40^{\circ} \mathrm{C}19.40∘C