boolean solve(int caseNum) {
if (!in.hasNextInt()) return false;
int n = in.nextInt();
if (n == 0) return false;
UFNode[] graph = new UFNode[n + 1];
int[] yes = new int[2];
for (int i = 0; i < graph.length; i++) graph[i] = new UFNode();
PARSE:
while (true) {
switch (in.next().charAt(0)) {
case 'c':
graph[in.nextInt()].merge(graph[in.nextInt()]);
break;
case 'd':
graph[in.nextInt()].remove();
break;
case 'q':
yes[graph[in.nextInt()].find() == graph[in.nextInt()].find() ? 0 : 1]++;
break;
case 'e':
break PARSE;
}
}
System.out.println(yes[0] + " , " + yes[1]);
return true;
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
int num[][] = {
{0, 2, 3, 5, 6, 7, 8, 9},
{2, 3, 4, 5, 6, 8, 9},
{0, 2, 3, 5, 6, 8, 9},
{0, 4, 5, 6, 8, 9},
{0, 1, 2, 3, 4, 7, 8, 9},
{0, 2, 6, 8},
{0, 1, 3, 4, 5, 6, 7, 8, 9}
};
while (scanner.hasNextInt()) {
int a = scanner.nextInt();
String b = scanner.next();
if (a == 0) break;
String data[][] = new String[5 + (a - 1) * 2][(3 + (a - 1)) * b.length()];
for (int i = 0; i < 5 + (a - 1) * 2; i++)
for (int j = 0; j < (3 + (a - 1)) * b.length(); j++) data[i][j] = " ";
for (int i = 0; i < b.length(); i++) {
for (int j = 0; j < 3; j++) {
for (int k = 0; k < num[j].length; k++) {
if ((int) b.charAt(i) - 48 == num[j][k]) {
for (int h = 0; h < a; h++) data[(a + 1) * j][1 + i * (a + 2) + h] = "-";
}
}
}
for (int j = 3; j < 5; j++) {
for (int k = 0; k < num[j].length; k++) {
if ((int) b.charAt(i) - 48 == num[j][k]) {
for (int h = 0; h < a; h++) data[1 + h][(j - 3) * (a + 1) + (i * (a + 2))] = "|";
}
}
}
for (int j = 5; j < 7; j++) {
for (int k = 0; k < num[j].length; k++) {
if ((int) b.charAt(i) - 48 == num[j][k]) {
for (int h = 0; h < a; h++) data[a + 2 + h][(j - 5) * (a + 1) + (i * (a + 2))] = "|";
}
}
}
}
StringBuffer sb = new StringBuffer("");
for (int i = 0; i < 5 + (a - 1) * 2; i++) {
for (int j = 0; j < (3 + (a - 1)) * b.length(); j++) {
if ((j - (a + 1)) % (a + 2) == 0 && (j + 1) != (3 + (a - 1)) * b.length())
sb.append(data[i][j] + " ");
else sb.append(data[i][j]);
}
sb.append("\n");
}
System.out.println(sb);
}
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
while (scanner.hasNextInt()) {
int a = scanner.nextInt();
if (a == 0) break;
while (a / 10 != 0) {
int sum = 0;
while (a / 10 != 0) {
sum = sum + a % 10;
a = a / 10;
}
a = a + sum;
}
System.out.println(a);
}
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int n = 1;
while (scanner.hasNextInt()) {
int a = scanner.nextInt();
int b = scanner.nextInt();
if (a == 0) break;
BigInteger sum = BigInteger.ZERO;
BigInteger bb = BigInteger.valueOf(b);
for (int i = 0; i < a; i++) sum = sum.add(scanner.nextBigInteger());
System.out.println(
"Bill #" + n + " costs " + sum + ": each friend should pay " + sum.divide(bb) + "\n");
n++;
}
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
while (scanner.hasNextInt()) {
int n = scanner.nextInt();
int k = scanner.nextInt();
BigInteger sum = BigInteger.ONE;
for (int i = n; i > n - k; i--) {
sum = sum.multiply(BigInteger.valueOf(i));
}
for (int i = 2; i <= k; i++) {
sum = sum.divide(BigInteger.valueOf(i));
}
System.out.println(sum.toString().length());
}
}
