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CREATE procedure `test`(m INT, d INT) BEGIN set @m = m; set @d = d; set @i = @m-@d; set @size = 4 * floor( @i/9 ); set @size = @size + ceil( (@i % 9) / 2 ); set @size = @size + 4 * floor( @d/9 ); set @size = @size + ceil( (@d % 9) / 2 ); select @size; END;

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