109 - 24 : [ 1 + 2 x ( 24 x 25 - 599 ) ] = 101
= 109 - 24 : [ 1 + 2 x ( 600 - 599 ) ] =
= 109 - 24 : ( 1 + 2 x 1 ) =
= 109 - 24 : 3 =
= 109 - 8 =
= 101
