( )-8=7 ( )-6=12
( )-7=6 ( )-9=4
( )-7=4 ( )-6=8
( )-5=7 ( )-3=9
( )-4=12 ( )-8=3
( )-7=5 ( )-8=8
( )-7=7 ( )-6=13
( )-6=9 ( )-5=6
( )-12=7 ( )-13=6
( )-11=9 ( )-9=5
( )-14=5 ( )-11=7
( )-12=8 ( )-4=15
( )-8=12 ( )-9=11
( )-1=15 ( )-7=5
( )-8=6 ( )-7=11
( )-12=6 ( )-5=6
( )-13=4 ( )-12=6
( )-15=2 ( )-8=5
( )-9=7 ( )-6=13
( )-4=12 ( )-7=13
( )-11=4 ( )-9=7
( )-13=7 ( )-3=15
( )-9=12 ( )-2=8
( )-1=15 ( )-6=7
( )-7=6 ( )-5=11
( )-10=6 ( )-6=8
( )-13=5 ( )-11=7
( )-13=3 ( )-3=5
( )-7=9 ( )-6=12
( )-4=11 ( )-6=14
( )-9=7 ( )-5=12
( )-9=6 ( )-10=4
( )-8=4 ( )-7=8
( )-6=7 ( )-1=9
( )-4=12 ( )-9=3
( )-6=5 ( )-4=8
( )-8=8 ( )-7=13
( )-10=9 ( )-4=6
( )-12=8 ( )-11=6
( )-12=9 ( )-8=5
( )-11=5 ( )-12=7
( )-11=8 ( )-3=15
( )-8=12 ( )-10=11
( )-4=15 ( )-8=5
( )-10=6 ( )-7=11
( )-11=6 ( )-3=6
( )-12=4 ( )-13=6
( )-15=2 ( )-7=5
( )-10=7 ( )-2=13
( )-5=12 ( )-7=13
15-( )=6 13-( )=11
11-( )=4 12-( )=8
11-( )=9 13-( )=5
16-( )=4 17-( )=9
15-( )=6 14-( )=5
18-( )=3 14-( )=11
16-( )=8 12-( )=8
16-( )=4 18-( )=3
17-( )=6 17-( )=8
14-( )=5 19-( )=13
13-( )=8 14-( )=4
11-( )=7 12-( )=6
14-( )=7 18-( )=9
19-( )=1111-( )=8
15-( )=4 13-( )=6
12-( )=3 16-( )=5
18-( )=1219-( )=11
13-( )=8 17-( )=4
15-( )=8 14-( )=9
18-( )=8 17-( )=10
13-( )=6 12-( )=11
12-( )=4 13-( )=8
12-( )=9 14-( )=5
17-( )=4 18-( )=9
10-( )=6 15-( )=5
19-( )=3 15-( )=11
15-( )=8 11-( )=8
17-( )=4 18-( )=3
16-( )=6 19-( )=8
13-( )=5 18-( )=13
13-( )=7 14-( )=6
11-( )=8 12-( )=7
14-( )=8 18-( )=10
19-( )=1211-( )=10
15-( )=3 13-( )=7
12-( )=4 16-( )=6
18-( )=2 19-( )=18
13-( )=9 17-( )=5
15-( )=7 14-( )=5
18-( )=1017-( )=12
15-( )=6 13-( )=11
11-( )=4 12-( )=8
11-( )=9 13-( )=5
16-( )=4 17-( )=9
15-( )=6 14-( )=5
18-( )=3 14-( )=11
16-( )=8 12-( )=8
16-( )=4 18-( )=3
17-( )=6 17-( )=8
14-( )=5 19-( )=13
,