intstr=(input())
intstr_s = intstr.split(" ")

n_kyori = int(intstr_s[0])
if n_kyori < 0:
	n_kyori = -n_kyori

kyori = int(intstr_s[1])
timer = int(intstr_s[2])
result = ""

hikaku_kyori = int(kyori*timer)

if n_kyori <= hikaku_kyori:
	result = "Yes"
else:
	result = "No"

print(result)