7
x
2
= ?
4
x
3
= ?
0
x
12
= ?
0
x
3
= ?
5
x
1
= ?
9
x
1
= ?
5
x
4
= ?
1
x
19
= ?
0
x
19
= ?
1
x
20
= ?
12
20
19
20
5
0
0
14
0
9
1
x
1
= ?
1
x
15
= ?
11
x
1
= ?
1
x
15
= ?
0
x
12
= ?
1
x
1
= ?
3
x
4
= ?
6
x
2
= ?
0
x
4
= ?
8
x
2
= ?
15
12
0
15
0
12
16
1
11
1
20
0
0
conicimo