harshit2

new_lst = []
for i in lst1:
    nomatch = True
    for j in lst2:
        if i == j:
            nomatch = False
    if nomatch:
        new_lst.append(i)

for k in lst2:
    nomatch = True
    for l in lst1:
        if k == l:
            nomatch = False
    if nomatch:
        new_lst.append(k)

new_lst.sort()