La entrada consiste en diversos pares de enteros
y
.
Assumid
.
Salida
Para cada par
,
escribid
.
Suponed, como es habitual, que
.
About statements
The official statement of a problem is always the one
in the PDF document. The HTML version of the statement
is also given to help you, but may contain some content
that is not well displayed. In case of doubt, always use the PDF.