#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main(int a,char b[]){

double vz_frekvence=atof(b[1]),pocetvz=atof(b[2]),frekvence=atof(b[3]);
double deltaf,k,c,vzorky,x,y,y1,y2,p,cas,t,P[10000],neco,prumer;
int i=0,g,h,o;
y=0;
y1=0;
y2=0;
p=0;
g=0;
a=0;
o=5;
//vzorky=malloc(sizeof (float) * 1000000);
//vzorky=neco;



    deltaf=fs/n;
    k=f/deltaf;
    c=cos(2M_PI(k/n));
    cas=0.000125;

    while(scanf("%lf",&vzorky)==1){
        t=t+cas;
        i++;
	x=vzorky;
	if(p==1)y2=y1; 
        y=x+(2y1c)-y2;
        y1=y;
        p=1;




    if(t>=0.04){
        t=0;
        P[g]=(yy)+(y1y1)-(2cy*y1);
        //printf("%its printing time lf\n\n",P[g]);
        y=y1=y2=0;


        if(g>=5){
    	    prumer=(P[0]+P[1]+P[2]+P[3]+P[4])/5;
    	    a++;
    	    g++;
        }
        else{
         printf("- ");
         g++;
         }



        if(h>=2){
                if(P[o]>=prumer){
                printf("+ ");
                g++;
                o++;
                }
            else{
                 printf("- ");
                g++;
                o++;
                }
        }

        }

    }

printf("\n");
    return(0);

}