How many doubly land-locked countries are there?
2
2
2
2
2
3
2
3
2
3
2
3
2
3
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
5
2
3
4
1
0
5
2
3
4
1
5
0
2
3
4
1
6
5
2
3
4
0
1
6
5
2
3
4
1
6
0
5
2
3
4
1
6
5
0
2
3
4
1
6
9
5
3
4
0
8
1
6
7
9
5
3
4
8
1
6
7
0
9
5
3
4
8
1
6
7
9
5
0
4
8
1
6
7
9
5
4
0
8
1
6
7
9
5
4
8
1
6
7
0
9
5
4
8
1
6
7
9
5
0
4
13
10
8
1
6
7
9
5
13
10
8
1
6
7
9
13
11
10
8
1
6
7
9
13
11
10
14
8
1
6
7
9
13
11
10
14
8
1
6
7
9
13
11
10
14
8
1
6
7
9
13
11
10
14
8
6
7
9
2 countries
2 countries
ten
+1