#include<stdio.h>
int main() {
int n = 1 ; 
double k = 68.8 ; 

int odd=((int) k & ~1) ;
int test=((int) (k+1)  & ~1) ;
int even=(test>k) ? odd+1 : odd - 1 ; 

std::cout << odd << " " << even << std::endl ; 
}

68 67