Problem: You have a blackboard and initially only an odd number x is written on it. Your goal is to write the number 1 on the blackboard.

You may write new numbers on the blackboard with the following two operations. 

  * You may take two numbers (not necessarily distinct) already on the blackboard and write their sum on the blackboard. The two numbers you have chosen remain on the blackboard. 
  * You may take two numbers (not necessarily distinct) already on the blackboard and write their [bitwise XOR](https://en.wikipedia.org/wiki/Bitwise_operation#XOR) on the blackboard. The two numbers you have chosen remain on the blackboard. 

Perform a sequence of operations such that at the end the number 1 is on the blackboard.

Input

The single line of the input contains the odd integer x (3 ≤ x ≤ 999,999).

Output

Print on the first line the number q of operations you perform. Then q lines should follow, each describing one operation. 

  * The "sum" operation is described by the line "a + b", where a, b must be integers already present on the blackboard. 
  * The "xor" operation is described by the line "a ^ b", where a, b must be integers already present on the blackboard. 

The operation symbol (+ or ^) must be separated from a, b by a whitespace.

You can perform at most 100,000 operations (that is, q≤ 100,000) and all numbers written on the blackboard must be in the range [0, 5⋅10^{18}]. It can be proven that under such restrictions the required sequence of operations exists. You can output any suitable sequence of operations.

Examples

Input


3


Output


5
3 + 3
3 ^ 6
3 + 5
3 + 6
8 ^ 9


Input


123


Output


10
123 + 123
123 ^ 246
141 + 123
246 + 123
264 ^ 369
121 + 246
367 ^ 369
30 + 30
60 + 60
120 ^ 121

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 100;
const long long mod = 998244353;
const long long g = 3, mx = (1LL << 40);
const int lim = 40;
template <class T>
void Mul(T &x, T y) {
  x = x * y % mod;
}
template <class T>
void Add(T &x, T y) {
  x = (x + y) % mod;
}
template <class T>
void Sub(T &x, T y) {
  x = (x - y + mod) % mod;
}
template <class T>
void Mn(T &x, T y) {
  x = min(x, y);
}
template <class T>
void Mx(T &x, T y) {
  x = max(x, y);
}
long long qpow(long long x, long long y = mod - 2) {
  long long res = 1;
  while (y) {
    if (y & 1) Mul(res, x);
    Mul(x, x), y >>= 1;
  }
  return res;
}
void Div(long long &x, long long y) { Mul(x, qpow(y)); }
struct Opt {
  long long x, y;
  bool op;
  void ot() {
    cout << x << ' ';
    cout << (op ? '+' : '^') << ' ';
    cout << y << "\n";
  }
} opt[N];
int onum = 0;
int n, m, k;
long long cal_xor(long long x, long long y) {
  opt[++onum].op = 0;
  opt[onum].x = x;
  opt[onum].y = y;
  return (x ^ y);
}
long long cal_add(long long x, long long y) {
  opt[++onum].op = 1;
  opt[onum].x = x;
  opt[onum].y = y;
  return x + y;
}
long long cal_mul(long long x, long long y) {
  long long res = -1;
  while (y) {
    if (y & 1) {
      if (res == -1)
        res = x;
      else
        res = cal_add(res, x);
    }
    y >>= 1, x = cal_add(x, x);
  }
  return res;
}
long long lbas[50];
void ins(long long x) {
  long long nw = mx;
  for (int i = lim; i >= 0; i--, nw >>= 1) {
    if (x & nw) {
      if (!lbas[i]) {
        lbas[i] = x;
        break;
      } else
        x = cal_xor(x, lbas[i]);
    }
  }
}
bool chk(long long x) {
  long long nw = mx;
  for (int i = lim; i >= 0; i--, nw >>= 1)
    if (x & nw) x ^= lbas[i];
  if (x == 0) return 1;
  return 0;
}
long long my_rnd() {
lower_bound:
  long long x = 0;
  for (int i = lim; i >= 0; i--) {
    if (lbas[i]) {
      if (rand() & 1) {
        if (x == 0)
          x = lbas[i];
        else
          x = cal_xor(x, lbas[i]);
      }
    }
  }
  if (x == 0) goto lower_bound;
  return x;
}
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  long long x, a, b;
  cin >> x;
  ins(x);
  while (!lbas[0]) {
  la:
    a = my_rnd();
    b = my_rnd();
    if (a + b > 2LL * mx || chk(a + b)) goto la;
    cal_add(a, b);
    ins(a + b);
  }
  cout << onum << '\n';
  for (int i = 1; i <= onum; i++) opt[i].ot();
}