#my_list=['p','r','o','g']
#print(my_list[1])

#nested list

n_list=["happy",[2,0,1,5]]

print(n_list[0][0])

a=[5,10,15,20,25,25,25,30,35,40]
print("a[2]=",a[2])

a.append(45)
print(a)

print(a.count(45))
