1 7
1
1 20000 7
1 7
1
1
1
1
1 7
1 7
1 7
1 7
1
1 7
1
1 7
1
1 7
1
1
1
1 7
1 7
1
1 7
1
1
1 7
1 7
1
1 7
1 7
1 7
1
1
1 7
1 7
1
1 7
1
