#include <stdio.h>

void stampaMatriceI(int nr, int nc, int A[nr][nc]) {
  int i, j;
 
  for(i=0; i<nr; i++) {    
    for(j=0; j<nc; j++) {
      printf("%3d ", A[i][j]);
    }
    printf("\n");
  }
}

int main() {
  int i, j, k, x;
  int A[2][3] = {{1, 3, 0}, {-1, 5, 9}} ;
  int B[3][2] = {{1, 3}, {-1, 0}, {4, 7}}; 
  int C[7][7] = {0};
  
  puts("A:");
  stampaMatriceI(2, 3, A);
  puts("\nB:");
  stampaMatriceI(3, 2, B);
  puts("\nC:");
  stampaMatriceI(7, 7, C);
    
  return 0;
}