Here's the problem, I was wondering if i am right to assume that when a three-digit input is entered, i.e. 123, then the string 1 will be stored to al, 2 to ah, but i'm not sure where the 3 goes, or if ever it's plain wrong to look at the problem that way. Here's my plan, ask for 3-digit number, access the digits separately, convert to integer, manipulate the digits separately, then check if greater than 100, 175, and so so.