How many black presidents has the U.S. had?
1
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
5
4
1
2
3
5
4
1
0
2
3
5
4
1
2
3
0
5
4
1
2
3
5
4
0
2
3
5
4
0
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
6
3
5
4
6
3
One
5
4
6
3
One
5
4
6
3
One
5
4
7
6
3
One
5
4
7
6
One
5
7
6
One
5
7
6
8
One
5
7
6
8
9
One
5
11
7
6
8
9
One
5
11
7
6
8
9
One
11
7
6
8
9
One
11
7
6
8
9
One
11
7
6
8
9
One
11
7
6
8
9
One
Two
10
11
7
6
8
9
One
Two
10
11
7
6
8
9
13
One
Two
10
11
7
6
8
9
13
One
Two
ONE
ONE
ONE
ONE
One.
One.
One.