Python-сообщество

 def elements():
    H = 1
    He = 1
    Li = 1
    Be = 1
    B = 1
    C = 1
    N = 1
    O = 1
    F = 1
    Ne = 1
    Na = 1
    Mg = 1
    Al = 1
    Si = 1
    P = 1
    S = 1
    Cl = 1
    Ar = 1
    K = 1
    Ca = 1
    Sc = 1
    Ti = 1
    V = 1
    Cr = 1
    Mn = 1
    Fe = 1
    Co = 1
    Ni = 1
    Cu = 1
    Zn = 1
    Ga = 1
    Ge = 1
    As = 1
    Se = 1
    Br = 1
    Kr = 1
    Rb = 1
    Sr = 1
    Y = 1
    Zr = 1
    Nb = 1
    Mo = 1
    Tc = 1
    Ru = 1
    Rh = 1
    Pd = 1
    Ad = 1
    Cd = 1
    return Ad, Al, Ar, As, B, Be, Br, C, Ca, Cd, Cl, Co, Cr, Cu, F, Fe, Ga, Ge, H, He, K, Kr, Li, Mg, Mn, Mo, N, Na, Nb, Ne, Ni, O, P, Pd, Rb, Rh, Ru, S, Sc, Se, Si, Sr, Tc, Ti, V, Y, Zn, Zr
Ad, Al, Ar, As, B, Be, Br, C, Ca, Cd, Cl, Co, Cr, Cu, F, Fe, Ga, Ge, H, He, K, Kr, Li, Mg, Mn, Mo, N, Na, Nb, Ne, Ni, O, P, Pd, Rb, Rh, Ru, S, Sc, Se, Si, Sr, Tc, Ti, V, Y, Zn, Zr = elements()
a, b = (input() for _ in range(2))
if eval(a) == eval(b):
    print(a, "=", b)
else:
    print(a, "!=", b)
    ...
    ...