#include<stdio.h>double zc(double x, double y){ return 巧罩2*(x+y);}double mj(double x,double y){ return x*y;}int main(){ double x,y; scanf("%lf%lf",&x,&y); printf("%lf %lf",zc(x,y),mj(x,y)); 老宽扰 侍旦 getchar(); getchar(); return 0; }