// RandomUsername (Nikola Jovanovic)
// MindCoding Round 2
// A

#include <bits/stdc++.h>
#define DBG false
#define debug(x) if(DBG) printf("(ln %d) %s = %d\n", __LINE__, #x, x);
#define lld long long
#define ff(i,a,b) for(int i=a; i<=b; i++)
#define fb(i,a,b) for(int i=a; i>=b; i--)
#define par pair<int, int>
#define fi first
#define se second
#define mid (l+r)/2
#define INF 1000000000
#define MAXN 100005

using namespace std;

int main()
{
    char ch;
    while( scanf("%c", &ch) > 0 )
    {
        if(ch == ',')
            printf(" ");
        if(ch != '-' && ch != '.')
            printf("%c", ch);
    }
    return 0;
}