// 1072 (Mahmud_Jamil) BRUR
// Interval 2
#include<stdio.h>
int main()
{
long long int i,n,input,in=0,out=0;
scanf("%lld",&n);
for(i=1;i<=n;i++){
scanf("%lld",&input);
if(input>=10 && input<=20)
in++;
else
out++;
}
printf("%lld in\n%lld out\n",in,out);
return 0;
}
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