#include <stdio.h>
#include <stdlib.h>

int main()
{
int opt;
scanf("%d",&opt);
while(1)
{
    switch(opt)
    {
    case 1:printf("1");
        break;
    case 2:printf("2");
        break;
    case 3:exit(0);
    }
    
    printf("\n");
    scanf("%d",&opt);
}

return 0;

}