def alphabet_war(fight):
    p = {'w':4,'p':3,'b':2,'s':1,'m':-4,'q':-3,'d':-2,'z':-1}
    result = sum([p[i] for i in fight if p.get(i) != None])

    if result == 0: return "Let's fight again!"
    return "Right side wins!" if result < 0 else "Left side wins!"

'''
Task

Write a function that accepts fight string consists of only small letters and
return who wins the fight. When the left side wins return Left side wins!,
when the right side wins return Right side wins!,
in other case return Let's fight again!.

The left side letters and their power:

 w - 4
 p - 3
 b - 2
 s - 1

The right side letters and their power:

 m - 4
 q - 3
 d - 2
 z - 1

The other letters don't have power and are only victims.

Examples:
AlphabetWar("z");        //=> Right side wins!
AlphabetWar("zdqmwpbs"); //=> Let's fight again!
AlphabetWar("zzzzs");    //=> Right side wins!
AlphabetWar("wwwwwwz");  //=> Left side wins!
'''
