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

int main(void){
  long a, b, c, d, f, g;
  int kask;
  long masmoot;
  long moblad[512][512];
  long ridu=0;
  long sum;
  FILE *sfail=fopen("mob.in", "rt");
  FILE *vfail=fopen("mob.out", "w");
  
  while(!feof(sfail)){
     ridu++;
     printf("K2sil rida %d...\n", ridu);
     fscanf(sfail, "%d", &kask);                   
     if (kask==0){                                                   //1-ne käsurida - kui suur massiiv teha
          fscanf(sfail, "%d", &masmoot);
          f=0;
          for(f=0; f<masmoot; f++){
            g=0;
              for(g=0; g<masmoot; g++){
                moblad[f][g]=0;
              }
          }
          printf("Tegin %d * %d massiivi\n", masmoot, masmoot);
     }
     if(kask==1){                                                                  //moblade arvu muutus
          fscanf(sfail, "%d", &a); fscanf(sfail, "%d", &b); fscanf(sfail, "%d", &c);
          moblad[a][b]+=c;
          if(moblad[a][b]<0){
            moblad[a][b]=0;
          }
          printf("Rea %d ja veeru %d v22rtus muutus %d v6rra ja on nyyd %d\n", a, b, c, moblad[a][b]);
     }
     if(kask==2){
          fscanf(sfail, "%d", &a); fscanf(sfail, "%d", &b); fscanf(sfail, "%d", &c); fscanf(sfail, "%d", &d);
          f=a;
          sum=0;
          for(f=a; f<=c; f++){
             g=b;
             for(g=b; g<=d; g++){
                 sum+=moblad[f][g];
             }
          } 
          printf("Summa on: %d\n", sum);
          fprintf(vfail,"%d\n", sum);
          fflush(vfail);
     }
     if(kask==3){
          printf("finito");
          goto end; 
     }

  }
  end:
  fclose(sfail);
  fclose(vfail);
  return 0;
}