def main():
  A, B, C, X, Y = map(int, input().split())
  if A + B <= 2*C:
    print(A*X + B*Y)
  elif 2*C < A and 2*C < B:
    print(C*max(X,  Y)*2)
  elif 2*C < A or 2*C < B:
    print(C*max(X,  Y)*2)
  else:
    if X < Y:temp = B
    else:  temp = A
    print(C*min(X, Y)*2 + temp*(abs(X-Y)))
if __name__ == "__main__":
  main()
