Program listing:
https://benryves.com/bin/sharp-pc-121...
String variables and numeric variables share the same fixed slots on the PC-1211, so strings are a maximum of seven characters in length. Variables are named A-Z, though can also be accessed as an array A(n) where A(1) is the same as A, A(2) is the same as B etc (so Z, Z$, A(26) and A$(26) all refer to the same piece of memory). The maximum A(index) depends on the amount of free memory left after your program takes up some of the 1,424 available bytes of RAM.