year_born=2005
year_current=2017

age=year_current-year_born

print "person's age is", age

first_name="Omar"
last_name="Adam"

full_name=first_name+" "+last_name

print full_name

people1=["Ali","Adam","Omar","Samir"]
people2=["Karim","Amr","Hassan"]

all_people=people1+people2

print all_people

people_age_dictionary={"Adam":18,"Ali":25,"Samir":32}
print "Ali's age is:", people_age_dictionary["Ali"]
