View Code of Problem 31

#include <stdio.h>
int main(){
	long int a,b=0,k=0,i=1;
	scanf("%d",&k);
	if(k <= 0)
		return 0;
	while(i)
	{	
		a = i*7+2;
		if((a%3==2)&&(a%5==3))
		{
			b++;
			if(b == k)
				printf("%ld\n",a);
				break;
		}
		i++;
	}
	return 0;
}