def clean(c,d,e):

for i in range (2,min(c,e) + 1):
    if c % i == 0 and e % i == 0:
        return 'NO'
return 'YES'

x = list(map(int, input().split())) k,a,b = x[0],x[1],x[2] print(clean(k,a,b))