import java.util.*; public class Main{ public static void main(String[] args){ Scanner in = new Scanner(System.in); while(in.hasNext()){ int num = in.nextInt(); int count = 0; for(int i = 7; i <= num; i++){ if(i%7 == 0) {count++; continue;} int temp = i; while(temp != 0){ if(temp%10 == 7) { count...