ll@t;
rep(t){
	ll@h,@w,@a[h][w];
	rep(y1,h){
		rep(x1,w){
			rep(y2,h){
				rep(x2,w){
					if(x1!=x2||y1!=y2){
						if(x1==x2||y1==y2||x1+y1==x2+y2||x1-y1==x2-y2){
							if(a[y1][x1]+a[y2][x2]>0){
								wt("infinite");
								goto next;
							}
						}
					}
				}
			}
		}
	}
	wt("finite");
	next:;
}