rep(i,sz(res)){
stringstream ss;
ss<<res[i];
string s;
ss>>s;
r.pb(s);
}
inline VS split(string s,char* tok) {
VS vs;
char *pch;
char *q= (char*)s.c_str();
pch=strtok(q," ");
while(pch !=NULL) {
vs.pb(string(pch));
pch=strtok(NULL,tok);
}
return vs;
}
int main()
{
ios_base::sync_with_stdio(false);cin.tie(NULL);
#ifndef ONLINE_JUDGE
freopen("in.txt", "r", stdin);
#endif
VS v;vector<ll> cal;
int n,m;
cin>>n>>m;
rep(i,n)
{
string s;
cin>>s;
v.pb(s);
}
