#include <stdio.h>
#include <math.h>
int main(void)
{
double e1, e2;
double x;
e1
= 1 + (x
/1)+ pow(x
,2)/(1.
*2) + pow(x
,3)/(1*2*3) + pow(x
,4)/(1*2*3*4) + pow(x
,5)/(1*2*3*4*5);
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxtYXRoLmg+CmludCBtYWluKHZvaWQpCnsKICAgIGRvdWJsZSBlMSwgZTI7CiAgICBkb3VibGUgeDsKICAgICBlMSA9IDEgKyAoeC8xKSsgcG93KHgsMikvKDEuKjIpICsgcG93KHgsMykvKDEqMiozKSArIHBvdyh4LDQpLygxKjIqMyo0KSArIHBvdyh4LDUpLygxKjIqMyo0KjUpOwogICAgCiAgICBwcmludGYoIiUuNWxmXG4iLCBlMSk7CiAgIAogICAgZTIgPSBleHAoeCk7CiAgICAgIHByaW50ZigiJS41bGZcbiIsIGUyKTsKICAgIAogICAgCgogICAgcmV0dXJuIDA7Cn0=