## The challenge#

### Introduction#

There is a war and nobody knows – the alphabet war!
There are two groups of hostile letters. The tension between left side letters and right side letters was too high and the war began.

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.

### Example#

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

## The solution in Python code#

Option 1:

``````def alphabet_war(fight):
left = {
'w': 4,
'p': 3,
'b': 2,
's': 1
}
right = {
'm': 4,
'q': 3,
'd': 2,
'z': 1
}

score = 0

for i in list(fight):
if i in left:
score -= left[i]
elif i in right:
score += right[i]

if score > 0:
return "Right side wins!"
elif score < 0:
return "Left side wins!"
else:
return "Let's fight again!"
``````

Option 2:

``````def alphabet_war(fight):
d = {'w':4,'p':3,'b':2,'s':1,
'm':-4,'q':-3,'d':-2,'z':-1}
r = sum(d[c] for c in fight if c in d)

return {r==0:"Let's fight again!",
r>0:"Left side wins!",
r<0:"Right side wins!"
}[True]
``````

Option 3:

``````def alphabet_war(fight):
a, b = 'sbpw', 'zdqm'
l, r = sum([a.find(x)+1 for x in fight]), sum([b.find(y)+1 for y in fight])
return "Right side wins!" if l<r else "Left side wins!" if r<l else "Let's fight again!"
``````

## Test cases to validate our solution#

``````import test
from solution import alphabet_war

@test.describe("Fixed Tests")
def fixed_tests():
@test.it('Basic Test Cases')
def basic_test_cases():
test.assert_equals(alphabet_war("z"), "Right side wins!")
test.assert_equals(alphabet_war("zdqmwpbs"), "Let's fight again!")
test.assert_equals(alphabet_war("wq"), "Left side wins!")
test.assert_equals(alphabet_war("zzzzs"), "Right side wins!")
test.assert_equals(alphabet_war("wwwwww"), "Left side wins!")
``````