square of 11 , 111 , 1111 etc.... can find with other simple method.
ie, 112 = 121
1112 = 12321
11112 = 1234321.................
same with case of 3 almost....
i.e.
32 = 9
332 = 1089 (This 1 n 8 is just (n-1) in number where n=number of 3 to be squared)
3332 = 110889
33332 = 11108889