#include <iostream>
#include <list>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdint.h>
#include <iomanip>
using namespace std;

using uint = unsigned int;
using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define GETLINE( A ) string A; getline( cin , A ) 
#define FOR_LL( VAR , INITIAL , FINAL_PLUS_ONE ) for( ll VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ ) 
#define FOR_ITR( ARRAY , ITR , END ) for( auto ITR = ARRAY .begin() , END = ARRAY .end() ; ITR != END ; ITR ++ ) 
#define REPEAT( HOW_MANY_TIMES ) FOR_LL( VARIABLE_FOR_REPEAT , 0 , HOW_MANY_TIMES ) 
#define RETURN( ANSWER ) cout << ( ANSWER ) << endl; return 0 

template <typename T> inline T Distance( const T& a , const T& b ){ return a < b ? b - a : a - b; }

int main()
{
  
  CIN( ll , N );
  CIN( ll , M );
  ll count = 0;
  ll answer = 0;
  REPEAT( N ){
    CIN( ll , A );
    if( A % 2 == 1 ){
      count++;
      answer += A;
    } else {
      if( count >= M ){
	cout << answer << endl;
      }
      count = 0;
      answer = 0;
    }
  }
  if( count >= M ){
    cout << answer << endl;
  }
  return 0;

}