Thx! 奇 vs. 偶

• 1 = a, j, s,
• 2 = b, k, t,
• 3 = c, l, u,
• 4 = d, m, v,
• 5 = e, n, w,
• 6 = f, o, x,
• 7 = g, p, y,
• 8 = h, q, z,
• 9 = i, r,

.....and then summed. Examples:

•  2 + 4 = 6