a=[1,2,3,4,5,6,7,8,9] print (a)
b = str() for item in a:
    b = b+str(item) print (b)
c = str() for i in range(0,len(a)):
    c = c+ str(a[i]) print (c)
d = ''.join([str(i) for i in a]) print (d)