This is a cache not like others in this area. It is a lock box with a three digit code. There are three steps to figuring this cache.
Step 1
1. Pick any number.
2. Add the next highest number. (Example: if your original number is 43 than the number for step 2 would be 44)
3. Add 9
4. Divide by 2
5. Subtract your original number
Step 2
1. Pick any number
2. Add 9
3. Multiply by 2
4. Subtract 4
5. Divide by 2
6. Subtract the number first chosen
Step 3
1. Choose any number
2. Add 3
3. Multiply by 2
4. Subtract 4
5. Divide by 2
6. Subtract the number you originaly started with