The 1st one is AUG AAU UUU AGC GAC
AUG- met or start AAU- asn UUU- phe AGC- stop after you hit stop don't go any further.
The 2nd one is AGU AAU UUA GCG ACA
AGU- met or start AAU- asn UUA- leu GCG- ala ACA thr you will not stop because there are no mrna that has stop in the second one.