#include <stdio.h>
#include <stdlib.h>
#include <stdring.h>
int main(int argc, char *argv[])
{
char s[] = "satou";
int len = strlen(s);
int n = atoi(argv[1]);
int i, j;
for (i = 1; i <= n; i++) {
for (j = 0; j < i; j++) {
putchar(s[i%n]);
}
putchar('\n');
}
return 0;
}