4 5 13 20 July 8, 2019 16 32 64 128 4 5 х )+ 13 20 4 5 х 13 20 х 2 4 5 x 13 20 x 2 James 4 13 5 20 4 5 20m 5 )= 13 m 20 5 x 4 5 13
