#include <cstdio>
#include <cmath>
#include <string>

void main()
{ int x = 3000;
  int y = 123456;
  int z = -256;
  x *= 1000000;
  double pi = acos(-1.0);
  double e = exp(1.0);
  double mpi = 1000000*pi;
  string h = "hello";
  printf("x is %d, y is %d, z is %d\n", x, y, z);
  printf("x is %X, y is %X, z is %X\n", x, y, z);
  printf("x is %u, y is %u, z is %u\n", x, y, z);
  printf("%8d %8d %8d\n", 12, 12345678, 12345);
  printf("%8d %8d %8d\n", 9876, 98765432, 98);
  printf("%8d %8d %8d\n", 56677889, 5555, 55);
  printf("%-8d %-8d %-8d\n", 12, 12345678, 12345);
  printf("%-8d %-8d %-8d\n", 9876, 98765432, 98);
  printf("%-8d %-8d %-8d\n", 56677889, 5555, 55);
  printf("%08d %08d %08d\n", 12, 12345678, 12345);
  printf("%08d %08d %08d\n", 9876, 98765432, 98);
  printf("%08d %08d %08d\n", 56677889, 5555, 55);
  printf("%f %f %f\n", pi, e, mpi);
  printf("%15f %15f %15f\n", pi, e, mpi);
  printf("%.5f %.5f %.5f\n", pi, e, mpi);
  printf("%15.3f %15.3f %15.3f\n", pi, e, mpi);
  printf("%.5e %.5e %.5e\n", pi, e, mpi);
  printf("%s %s\n", "hello", h.c_str()); }