how to call out specific cell in a matrix

If I have

A=[1,2,3,4,5]

B=[6,7,8,9,10]

C=[1,2,3,4,5]

If there a way to call out specific position at each matrix so that:

1. Sum first value of A and first value of B (1+6)
2. Compare it to first value of C using if-statement (e.g. if A+B < C), increase N by 1
3. Next, sum second value of A and second value of B (2+7)
4. Compare it to second value of C using if-statement, similar to #2 bullet and so on

Thank you

Answer 1

[Matt J]

S=A+B;

for i=1:length(S)
    
    if S(i)<C(i)
        ...
    end
    
end