Interaction with the program might look like this:

Below is a codon translation table - ideally you should check for
all codons in your program. (Source: http://biocommons.bcc.washington.edu/services/psoftware/dnatranslator.
You can see the full names of the amino acids here.)

[Guide to the table: Each entry in the table is a green box. To translate a codon you find the first letter of the codon on the left to identify a row in the table; then you find the middle letter of the codon above the table to identify the column; in the green box located in this row and column, you will find the four possible codons starting with these two letters. E.g., the translation of codon 'CAG' is found in the green box in the second row and the third column (the result is 'Q').]