How many countries are less than 1 mile?
2
1
1
1
3
2
1
3
2
1
3
2
4
1
3
2
4
5
1
3
2
4
5
1
3
2
4
5
1
3
2
4
5
1
3
2
4
5
1
3
2
4
5
1
3
0
2
4
5
1
3
2
0
4
5
1
3
6
2
4
5
0
1
3
6
2
4
5
1
3
6
0
2
4
5
1
3
6
2
0
4
5
1
3
6
2
4
5
0
1
3
6
7
2
4
5
1
3
6
7
2
4
5
3
6
7
2
4
5
3
6
7
2
4
5
6
7
8
4
5
6
7
8
9
4
5
6
7
8
9
5
6
7
8
9
6
7
8
9
6
7
11
8
9
10
6
7
11
8
9
10
6
7
11
8
9
10
6
7
11
8
13
9
10
6
7
11
8
13
9
12
10
6
7
11
8
13
9
12
10
7
11
8
13
9
12
10
7
11
8
13
9
12
14
128
2 countries
3 countries
128
4 countries
7 countries
128