M 4 9 2 July 8, 2019 16 32 64 128 M 4 9 21 M * 4 6 9 2 M 4 9 * 10 24 r 6100 M 4 2m 2 9 1 m 1 9 4 9 2 3m Plp1 m 2 4 9 002 Plp2 m 2 4 9 002 Plp1 m 2 4 9 001 M 4 m 2 6m 9 4 m 2 dm 9 cm 4 m 9 20 5 m 4 )+ 9 =- 21 M 4 7m 2 9 M 4 10m 2 9 0