

print ("hello world!")

a = [1,23,4,5,6,6,65]

#asum = a.count(6)
#a.append(8)
sss = sum(a)
print(sss)
print(a)
a.pop()    #a.pop() delete last value  a.append(x) add a value
print(a)
l = len(a)
print(l)
del a[1]
#print(s)
print(a)

s = a[2]
print(s)

su = sum(a)
print(su)




















