#include <stdio.h>
int main()
{
int Number;
int i, j;
scanf("%d", &Number);
printf("0~9 사이의 정수를 입력하세요 : ");
while (Number < 0 || Number > 9){
scanf("%d", &Number);
printf("다시 입력하세요 : ");
}
i = 0;
while (i <= Number) {
j = i;
while (j >= 0)
{
printf("%d", j);
j--;
}
j = 1;
while (j <= i)
{
printf("%d", j);
j++;
}
printf("\n");
i++;
}
return 0;
}
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