#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update
#include <ext/pb_ds/detail/standard_policies.hpp>


/* 
*    coder :: ATUL_PANDEY_2608
*        >>> INDIA <<<
*/	
using namespace std;
using namespace __gnu_pbds;

// #define  part ..
#define pb(a) push_back(a)
#define all(a) a.begin(),a.end() 
#define mod 1000000007
//#define maxx 200006
#define ll long long 
#define quick    ios_base::sync_with_stdio(NULL),cin.tie(0);
#define listll vector< long long > 
#define listi vector< int> 
#define pii   pair<int , int> 
#define pll pair<long long , long long > 
#define minheap priority_queue<long long , vector< long long >, greater<long long > >
#define rep(i,a,b) for(int i=a;i<b;i++)





ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}

ll power( ll a, ll n, ll m= 1000000007){
  ll ans = 1;
  while(n){
  if(n&1)
  {
  ans *= a;
  ans%=m;
  }
  a*=a;
  a%=m;
  n/=2;
  }
  return ans ;
} 


vector< int > prm ;
vector < bool > vsp ;

void prime ( int nn = 100000 ) {
	vsp = vector < bool > ( nn+1, 0 );
	int size_prime = nn;
	for( ll i =2; i*i < size_prime ; i++){
		
		if( vsp[i] == 1)
		continue;
		for(ll j = i*i; j < size_prime ;j+=i){
			
			vsp[j] =1;
			
		}
		
		
	}
	
	for( int i= 2; i < size_prime ; i++)
	if (vsp[i] == 0)
	prm.pb(i);
	
	
}


template < class T > using oset = tree< T , null_type, less  < T  > , rb_tree_tag , tree_order_statistics_node_update > ;


// end of #define 

// define globals ...
const int maxx = 2e5+26;

//write function from here ...
// never forget  to recheck your predefined function in template .. 
// already defined ::  prime , power , gcd : ( ll ).. 








int Main(){
  
  ll a,b;
  cin>>a>>b;
  
  ll x = a+b;
  x/=2;
  ll y= x- b;
  cout<<x<<" "<<y<<endl;
  
  
  
return 0;

}






int main(){
 quick;
int t =1; 
//cin>>t;
while(t-- )
 Main();

 return 0;
}


  



#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
mt19937 mrand(random_device{}()); 
const ll mod=1000000007;
int rnd(int x) { return mrand() % x;}
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head

const int N=10100;
int n;
char s[N];
int a[N];
int main() {
	scanf("%d",&n);
	scanf("%s",s);
	rep(i,0,n+1) scanf("%d",a+i);
	int k=1<<30;
	rep(i,0,n) if (s[i]=='<') k=min(k,a[i+1]-a[i]); else k=min(k,a[i]-a[i+1]);
	printf("%d\n",k);
	rep(i,0,k) {
		rep(j,0,n+1) printf("%d ",a[j]/k+(i<a[j]%k));
		puts("");
	}
}