Let y=UV=10*u+v then
X*y=10*u*x+v*x
X+y=10*u+v+x
Reverse x+y,we have
(V+x)*10+u = 10*u+v
Let y=UV=10*u+v then
X*y=10*u*x+v*x
X+y=10*u+v+x
Reverse x+y,we have
(V+x)*10+u = 10*u+v
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