#include <stdio.h>
void main ()
{ 
    int i=-12;
    while ( -12 <= i && i <= 12 )
    {
        printf("%d",i);
        i++;
    }
     printf("\n");
    i=-12;
     printf("second time\n");
    do 
    {
        printf("%d",i);
        i++;
    }
    while ( -12 <= i && i <= 12 );
    return;
}