3 x 1 = 3
0 x 456 = 0
0(432) = 0
1 * 924 = 924
1(245)=245
17 * 1 = 17
2,693 x 1 = 2,693
5 * 0 = 0
546 x 0 = 0
7564(0) = 0
1(4) = 4
0 * 673845 = 0
