include<stdio.h>

int main() { float num; int zheng; float xiao; scanf("%f",&num); zheng=(int)num; xiao=num-zheng; int rev=0; while(zheng!=0) { int temp=zheng%10; zheng=zheng/10; rev=rev*10+temp; } double c=(double)rev/1000;

int d=(int)(xiao*10); printf("%.3lf",c+d); return 0;

}

#include<stdio.h>
int main()
{
    float num;
    int zheng;
    float xiao;
    scanf("%f",&num);
   zheng=(int)num;
    xiao=num-zheng;
   int rev=0;
   while(zheng!=0)
   {
       int temp=zheng%10;
       zheng=zheng/10;
       rev=rev*10+temp;
   }
   double c=(double)rev/1000;

   int d=(int)(xiao*10);
   printf("%.3lf",c+d);
   return 0;

}