Need someone experienced in JGrasp to complete a program

I need help with a compilers program, that generates the back patching, or intermediate code generation. Most is written, simply needs fixing of the logic.

YOU HAVE TO KNOW what a compiler is,the purpose of code generation what backpatching is. Output is given, needs to match EXACTLY, no hard coding because multiple test files that are tested against the logic of the program

Example of what output when program is done NEEDS to look like