Write a Python script that translates an mRNA sequence into a protein. In
other words, your script should convert all codons into amino acids. Use 
the codon to amino acid map provided below the homework link.

The input is given by the user on the keyboard. Use the input()
function. You may assume that the sequence length is always a
multiple of 3. 

For example if the user typed

AUGAGGUACGCCGCCAGA

then the output should be MRYAAR.

Submit a hardcopy in class on Oct 8th.