#include #include #include #include #include #include #define M 502 using namespace std; double p[M][M][2]; int d[]={5,20,1,18,4,13,6,10,15,2,17,3,19,7,16,8,11,14,9,12,5,20}; int cal(int a,int b){ return a>=b?a-b:a;} int main() { int n,m; for(n=0;nc) b=c; } p[n][m][1]=1-b; if(n>20) break; } } while(scanf("%d",&n)&&n){ printf("%.12lf %.12lf\n",p[n][n][0],p[n][n][1]); } return 0; }