program C membuat tabel perkalian

#include <stdio.h>
void main()
{int i,a,b,c,d,e,f,g,h,j,k;

 printf("\n");
  printf("___________________________________________________________________________\n");
{for (a=1; a<=10;a++)
{ printf("%d\t",a*1); }
  printf("___________________________________________________________________________\n");
{for (b=1; b<=10;b++)
{ printf("%d\t",b*2); }
 printf("___________________________________________________________________________\n");
{for (c=1; c<=10;c++)
{ printf("%d\t",c*3); }
 printf("___________________________________________________________________________\n");
{for (d=1; d<=10;d++)
{ printf("%d\t",d*4); }
 printf("___________________________________________________________________________\n");
{for (e=1; e<=10;e++)
{ printf("%d\t",e*5); }
 printf("___________________________________________________________________________\n");
{for (f=1; f<=10;f++)
{ printf("%d\t",f*6); }
 printf("___________________________________________________________________________\n");
{for (g=1; g<=10;g++)
{ printf("%d\t",g*7); }
 printf("___________________________________________________________________________\n");
{for (h=1; h<=10;h++)
{ printf("%d\t",h*8); }
 printf("___________________________________________________________________________\n");
{for (j=1; j<=10;j++)
{ printf("%d\t",j*9); }
 printf("___________________________________________________________________________\n");
{for (k=1; k<=10;k++)
{ printf("%d\t",k*10); }
  printf("___________________________________________________________________________\n");
}}}}}}}}}}}