#include<stdio.h>#include<iostream>#include<algorithm>using namespace std;const double Sqrt3_2=0.8660254037844386;int Skew(double x,double y){int row = (y>=1)+(int)((y-1)/Sqrt3_2);//计算行数return row*(int)x - (row/2)*(x-(int)x<0.5);}int main(){double x,y;while(scanf("%lf%lf",&x,&y)!=EOF){int grid = (int)x*(int)y;int skew = Skew(x,y)>Skew(y,x)?Skew(x,y):Skew(y,x);if (skew>grid)printf("%d skewn",skew);else printf("%d gridn",grid);}return 0;}
