#include <cstring>
#include <fstream>

using namespace std;

char s[200];
void read();
void solve();
void write();
int main(){
    read();
    solve();
    write();
    return 0;
}

void read(){
    #ifndef ONLINE_JUDGE
    freopen("input.txt","r",stdin);
    #endif // ONLINE_JUDGE
    fgets(s,100,stdin);
}

void solve(){
    for (int i=0;i<strlen(s);i++){
        if (s[i]==','){
            for (int j=strlen(s)-1;j>=i;j--){
                s[j]=s[j-1];
            }
            s[i]=' ';
            i++;
        }
        if (s[i]=='.'||s[i]=='-'){
            for (int j=i;j<strlen(s);j++){
                s[j]=s[j+1];
            }
            i--;
        }
    }
}

void write(){
    fputs(s,stdout);
}