203A - Two Problems - CodeForces Solution

x,t,a,b,da,db=map(int,input().split())
flag = False
for fa in range(2):
    for fb in range(2):
        for i in range(t):
            for j in range(t):
                if(fa*a-fa*(i*da)+fb*b-fb*(j*db)==x):
                    flag = True
if flag:
    print("YES")
else:
    print("NO")