杭电acm2113

#include <stdio.h>int main() {int n, i, ans, flag=1;while(~scanf("%d", &n)) {ans = 0;while(n) {i = n % 10;if(i%2==0)ans += i;n /= 10;}if(flag) {printf("%d\n", ans);flag = 0;} elseprintf("\n%d\n", ans);}return 0;}