View Code of Problem 69

#include<string.h>
#include<math.h>
#include<stdio.h>
#include<ctype.h>
int main()
{
	int x,y;
	scanf("%d",&x);
	if(x<1) y=x;
	else if(x>=10) y=3*x-11;
	else y=2*x-1; 
	printf("%d",y);
	return 0;
 }