n=int(input())
n=0
while n!=6:
if n==1:
a=int(input())
b=int(input())
c=b+a
print(c)
if n==2:
a=int(input())
b=int(input())
c=b-a
print(abs(c))
if n==3:
a=int(input())
b=int(input())
c=b*a
print(c)
if n==4:
a=int(input())
b=int(input())
c=b/a
print(abs(c))
if n==5:
a=int(input())
b=int(input())
c=b%a
print(abs(c))
n=n+1
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