# TOPIC

Wrong answer (10%)

#### Douglas Constant asked 2 years ago

def dama():
pos = str(input())
separapos = pos.split()
x1 = int(separapos[0])
y1 = int(separapos[1])
x2 = int(separapos[2])
y2 = int(separapos[3])
if x1>=1 and y1>=1 and x2>=1 and y2>=1 and x1<=8 and y1<=8 and x2<=8 and y2<=8:
if x1 == x2 and y1 == y2:
return 0
elif x1 == x2 and y1 != y2:
return 1
elif x1 != x2 and y1 == y2:
return 1
elif x1 != x2 and y1!=y2:
som1 = x1 + y1
som2 = x2 + y2
sub1 = x1 - y1
if sub1 < 0:
sub1 = sub1 * (-1)
sub2 = x2 - y2
if sub2 < 0:
sub2 = sub2 * (-1)
if som1 == som2:
return 1
elif sub1 == sub2 and x2>x1 and y2>y1:
return 1
elif sub1 == sub2 and x1>x2 and y1>y2:
return 1
elif sub1 == sub2 and x2>x1 and y1>y2:
return 1
elif sub1 == sub2 and x1>x2 and y2>y1:
return 1
else:
return 2
elif x1==0 and y1==0 and x2==0 and y2==0:
return
r = 1
while r!=None:
r = dama()
if r!=None:
print(r)

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