- #include <iostream> 
- #include <math.h> 
-   
- int main() { 
- 	double p, x; 
- 	scanf("%lf", &x); 
- 	   p = (((2*x + 3)*x - 4)*x - 5)*x + 6; 
- 	printf("%lf", p); 
-     return 0; 
- } 
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