#include <stdio.h>
int main(int argc, char*argv[]) {
int n = -1;
int ch = getchar();

if(ch == '0') n = 0;
else if(ch == '1') n = 1;
else if(ch == '2') n = 2;
else if(ch == '3') n = 3;
else if(ch == '4') n = 4;
else if(ch == '5') n = 5;
else if(ch == '6') n = 6;
else if(ch == '7') n = 7;
else if(ch == '8') n = 8;
else if(ch == '9') n = 9;

if(n != -1)
printf("n = %d\n", n);
else
printf("unko\n", n);
return 0;
}