On the number axis, the number of integer points whose distance from the origin is less than 2 is a, the number of integers whose distance from the origin is not more than 2 is B, and the number of integers whose distance from the origin is equal to 3 is C. find the value of a + B + C Please explain

On the number axis, the number of integer points whose distance from the origin is less than 2 is a, the number of integers whose distance from the origin is not more than 2 is B, and the number of integers whose distance from the origin is equal to 3 is C. find the value of a + B + C Please explain

ten
0,1, - 1 (3 in total) meet the requirements of A
0,1, - 1,2, - 2 (5 in total) meet the requirements of B
3, - 3 (2 in total) meet the requirements of C
3+5+2=10