#include using namespace std; typedef long long ll; typedef vector vi; typedef vector vl; typedef pair pii; typedef pair pll; typedef int _loop_int; #define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i) #define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i) #define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i) #define DEBUG(x) cout<<#x<<": "< P; int main(){ int n,m; cin>>n>>m; ll sum = 0, cnt = 0; REP(i,n+1){ int x; if(i==n){ x = 0; }else{ cin>>x; } if(x%2==0){ if(cnt>=m)cout<