#include“stdio.h”
int main(){
while(1){
float sum=0.5,num;
int card=2;
scanf("%f",&num);
if(num==0.00){
break;
}else if(num>=5.20){
continue;
}
else if(num<=0.5)
printf("1 Card(s)\n");
else
if(num>sum){
while(num>sum){
card++;
sum+=(float)1/card;
}
printf("%d Card(s)\n",card-1);
}
}
return 0;
}