#include<iostream>
#include<cstring>
using namespace std;
char a[10000][10000];
int main()
{
    long n=0,i,j;
    bool b=true;
    while(cin.getline(*&a[n],10000,'\n'))
        n++;
    for(i=0;i<n;i++)
    {
        for(j=0;j<strlen(a[i]);j++)
        {
            if(a[i][j]=='!' || a[i][j]=='?' || a[i][j]=='.')
            {
                b=true;
                continue;
            }
            if(b && a[i][j]!=' ')
            {
                b=false;
                continue;
            }
            if(!b)
            {
                if(a[i][j]!=' ' && a[i][j]!=',' && a[i][j]!='-' && a[i][j]!=';' && a[i][j]!=':' && ((int)a[i][j]<=(int)'a' || (int)'z'<=(int)a[i][j]))
                a[i][j]=(char)((int)a[i][j]+((int)'a'-(int)'A'));
            }
        }
    }
    for(i=0;i<n;i++)
        cout<<a[i]<<endl;
    return 0;
}