#include<stdio.h> int main() { int t , a=1, b=20, n=2,w,k=0; scanf_s("%d%d%d", &a, &b, &n); for (w = a; w <= b; ++w) { t = w; do { if ((t< 10 )&& (t == n))break; else if ((t>=10)&&(t%10 == n)) break; else t = t / 10; } while (t != 0); if (t==0) { k++; printf("%d\n", w); } } printf("有%d个数", k); }