#include <stdio.h>
static void _itoa(int n, char **p)
{
int i, n1, n2, n3;
int column = 0;
n1 = n;
do{
n1 /= 10;
column++;
}while(n1);
n1 = n;
n2 = 1;
for(i = 0; i < column - 1; i++)
n2 *= 10;
for(i = column; i > 0; i--){
n3 = n1 / n2;
*(*p) = '0' + n3;
(*p)++;
n1 %= n2;
n2 /= 10;
}
}
int main()
{
char buf[1024 * 16];
char *p;
int i;
p = buf;
for(i = 0; i < 2000; i++){
*p = 's';
p++;
_itoa(i , &p);
*p = 'e';
p++;
*p = '\n';
p++;
}
printf(buf);
}