#include"stdio.h"
int main(void)
{
long number=0;
long j=1;
long i;
printf("This program can output a chengfa_biao.\n");
printf("Now,plase input a number.\n");
scanf("%ld",&number);
for(i=1;i<=number;i++)
{
for(;j<=number;j++)
printf("%ld*%ld=%ld\n",i,j,i*j);
printf("\n");
j=i+1;
}
return 0;
}