一个题目多种答案，到底哪一个对，请给出出处、解释、说明。
答案1：64
11x11 = 4
22x22 = 4^2 = 16
33x33 = 4^3 = 64
答案2：18
11 x 11 = 121
1+2+1=4
22 x 22 = 484
4+8+4=16
33 x 33 = 1089
1+0+8+9=18
答案3：36
(1+1) * (1+1)= 2*2 = 4
(2+2) * (2+2)= 4*4 = 16
(3+3) * (3+3)= 6*6 = 36
答案4：28
11x11 = 11-(8-(11 mod 10)) = 11 - (8 - 1) = 4
22x22 = 22-(8-(22 mod 10)) = 22 - (8 - 2) = 16
33x33 = 33-(8-(33 mod 10)) = 33 - (8 - 3) = 28
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