a = [ ( 6 * 19 + 2 * 4 *12 ) - 30 ] : 10 *8
a = [ ( 114 + 8 * 12 ) - 30 ] : 10 * 8
a = [ ( 114 + 96 ) - 30 ] : 10 * 8
a = [ 210 - 30 ] : 10 *8
a = 180 : 10 * 8
a = 18 * 8
a = 144
b = 52 - [ 200 - 2 * ( 456 : 8 ) ] : 2
b = 52 - [ 200 - 2 * 57 ] : 2
b = 52 - [ 200 - 114 ] : 2
b = 52 - 86 : 2
b = 52 - 43
b = 9
