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X
Y
00
10
20
30
40
50
60
70
80
00
10
20
30
40
50
60
70
80
00
10
20
30
40
50
60
00
10
20
30
40
50
60
00
10
20
30
40
50
60
00
10
20
30
40
50
00
10
20
30
40
50
00
10
20
30
40
00
10
20
30
40
00
10
20
30
40
00
10
20
30
40
00
10
20
30
40
00
10
20
30
00
10
20
30
00
10
20
30
00
10
20
30
00
10
20
00
10
20
00
10
00
10
20
00
10
00
10
00
10
20
30
40
50
00
10