def main():
    try:
        import pypyjit
        pypyjit.set_param('max_unroll_recursion=-1')
    except:
        pass
    try:
        import sys
        sys.setrecursionlimit(10**7)
    except:
        pass
    from math import sqrt,sin,cos,tan,ceil,radians,floor,gcd,exp,log,log10,log2,factorial,fsum
    import heapq
    from bisect import bisect_left, bisect_right
    import copy
    from collections import deque,Counter,defaultdict
    from itertools import permutations,combinations
    from decimal import Decimal,ROUND_HALF_UP
    #tmp = Decimal(mid).quantize(Decimal('0'), rounding=ROUND_HALF_UP)
    from functools import lru_cache, reduce
    #@lru_cache(maxsize=None)
    from operator import add,sub,mul,xor,and_,or_
    INF = 10**18
    mod1 = 10**9+7
    mod2 = 998244353
    
    #DecimalならPython
    
    H,W,La,Lb,Ka,Kb = map(int, input().split())

    ans = 0
    delete = 0

    if H >= W:
        W2 = W
        while H > 0 and W2 > 0:
            ans += 1
            
            W2 -= Lb
            delete += Kb
            H -= delete//W
            delete %= W
        
        while H > 0:
            ans += 1
            H -= La
            delete += Ka
            H -= delete//W
            delete %= W
    else:
        H2 = H
        while W > 0 and H2 > 0:
            ans += 1
            
            H2 -= La
            delete += Ka
            W -= delete//H
            delete %= H
        
        while W > 0:
            ans += 1
            W -= Lb
            delete += Kb
            W -= delete//H
            delete %= H
            
    print(ans)
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
if __name__ == '__main__':
    main()