assign a 20
assign b 40
assign c 4
assign d 35
assign e 30
assign f 20
assign g 25
assign h 24
assign i 30
assign j 27
assign k 15
assign l 25
assign m 10
assign n 30
assign o 15
assign p 15
assign q 25
assign r 15
assign s 15
assign t 8
assign u 25
assign v 8
assign w 19
assign x 41
assign y 21
assign z 39