#include#include "math.h"//数字偶数去除 int fun(int n){ int m = 0, tmp, count = 0; while(n){ tmp = n%10; if(tmp%2==1){ m = m+tmp*pow(10,count++); } n = n/10; } return m;}int main(){ int n ; scanf("%d",&n); printf("%d",fun(n));}