View Code of Problem 31

#include <stdio.h>
int main(){
	long int b,k;
	scanf("%ld",&k);
	b = 23 + 3*5*7(k-1);
	printf("%ld\n",b);
	return 0;
}
/*
Main.c: In function 'main':
Main.c:5:15: error: called object is not a function or function pointer
  b = 23 + 3*5*7(k-1);
               ^
*/