#include<cstdio>#include<cstring>#include<cmath>#include<cstdlib>#include<iostream>using namespace std;int idx[205];int mtx[205][205];int main(){ int n; while(scanf("%d",&n)!=EOF) { int i,j; for(i=0;i<n;i++) idx[i]=1; int ci=0; for(i=0;i<n;i++) for(j=0;j<n;j++) scanf("%d",&mtx[i][j]); int num=0; bool found=0; while(ci<100000) { if(num==n) { found=1; break; } for(i=0;i<n;i++) { int sum=0; for(j=0;j<n;j++) sum+=mtx[i][j]*idx[j]; sum*=idx[i]; if(sum<0) { num=0; idx[i]*=-1; break; } else num++; } ci++; } if(found) { printf("Yesn"); for(i=0;i<n;i++) { if(idx[i]==1) printf("+n"); else printf("-n"); } } else printf("Non"); } return 0;}
