Meeting

DESCRIPTION:

John has invited some friends. His list is:

s = "Fred:Corwill;Wilfred:Corwill;Barney:Tornbull;Betty:Tornbull;Bjon:Tornbull;Raphael:Corwill;Alfred:Corwill";

Could you make a program that

• makes this string uppercase
• gives it sorted in alphabetical order by last name.

When the last names are the same, sort them by first name. Last name and first name of a guest come in the result between parentheses separated by a comma.

So the result of function meeting(s) will be:

"(CORWILL, ALFRED)(CORWILL, FRED)(CORWILL, RAPHAEL)(CORWILL, WILFRED)(TORNBULL, BARNEY)(TORNBULL, BETTY)(TORNBULL, BJON)"

It can happen that in two distinct families with the same family name two people have the same first name too.

Notes

• You can see another examples in the "Sample tests".

---

def meeting(s):
    s=s.upper()
    alist=s.split(";")
    for i in range(len(alist)):
        alist[i]=alist[i].split(":")
    for i in range(len(alist)):
        temp=alist[i][0]
        alist[i][0]=alist[i][1]
        alist[i][1]=temp
    for i in range(len(alist)):
        alist[i]=", ".join(alist[i])
    alist.sort()
    return "("+")(".join(alist)+")"