#include <stdio.h>
void main()
{
  int i;
  i = 1;
  printf("number = [%1d]\n",i);        // [1]
  printf("number = [%2d]\n",i+1);      // [ 2]
  printf("number = [%3d]\n",i+3);      // [  4]
  printf("number = [%-4d]\n",i);       // [1   ]
  printf("number = [%10.2f]\n",3.159); // [      3.16]
  printf("number = [%4.2f]\n",3.159);  // [3.16]
  printf("number = [%f]\n",3.159);     // [3.159000]
  printf("number = [%e]\n",3.159);     // [3.159000e+00]
  printf("[%5s]\n","a");               // [    a]
  printf("[%-5s]\n","a");              // [a    ]
  printf("%d\n",65);                   // 65
  printf("%o\n",11);                   // 13
  printf("%x\n",65);                   // 41
  printf("%u\n",65);                   // 65
  printf("%u\n",-5);                   // 65531
  printf("%u\n",-1);                   // 65535
  getchar();
}