13 lines
188 B
Python
13 lines
188 B
Python
t=int(input())
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for tc in range(1,t+1):
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a,b=map(int,input().split())
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result=0
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if a>9 or b>9:
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result=-1
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else:
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result=a*b
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print("#"+str(tc),result)
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