...a value
for i= 0 to MaxValue
if A(i)= 15 then
'do stuff
endif
next i
2) to jump to a section of an array(in your case 50 byte increments)
A( Num*50+i)
here, Num is index for field and i is index for each character.
In your example 1, A(2*50+3)='t',A(3*50+6)='P'
Looking at your code, I...