The short answer is you've used the wrong programming language. 
With C/C++…
By the time your code is being uploaded, it is compiled and the names you have carefully chosen are not known to the program.
The way around this is to give your sequences numbers by which they can be referred to.
Here a two dimensional array might be the easiest thing for you to figure out given what your code is now.
I'm not at the big rig. Google
two dimensional array C
while waiting for someone who might provide more immediate help.
But good conceptual thinking… at a glance, it should work, and there are languages where that kind of thing would.
Just not C.
a7