/*#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
#include <stdio.h>
int main()
{
int y, o, u;
scanf("%d %d %d",&y, &o, &u);
if((y-o+u)%10==0)
{
printf("대박");
}
else
{
printf("그럭저럭");
}
return 0;
}
#include <stdio.h>
int main()
{
int c, k, z;
scanf("%d %d %d",&c, &k, &z);
if((c+k+z)/100%10%2==0)
{
printf("대박");
}
else
{
printf("그럭저럭");
}
return 0;
}
#include <stdio.h>
int main()
{
int r, k;
scanf("%d %d",&r, &k);
if(k==2)
{
if( (r%400==0) || (r%4==0 && r%100!=0)) //윤년일 때
{
printf("29");
}
else
{
printf("28");
}
}
else if(k==1||k==3||k==5||k==7||k==8||k==10||k==12)//
{
printf("31");
}
else
{
printf("30");
}
return 0;
}*/
#include<stdio.h>
int main()
{
int m;
scanf("%d",&m);
if(1==1st||31==31st||21==21st||41==41st||51==51st||61==61st||71==71st||81==81st||91==91st)
{
printf("")
}
}