/*
task:risc
LANG:c
*/

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

int suma;

int main()
{
          int i, n, br = 0, k;
          
          scanf("%d", &n);
          
          br = br + 3;
          
          suma = 2*n*n + 2*n + 1;
          
          k = sqrt(suma);
          
          br = br + k;
          
          printf("%d\n?\nB\n", br);
          
          for(i = 0; i < k; i++)
          {
                printf("+\n");
          }
                          
          printf("LOOP");
          
          return 0;
}
