#include <bits/stdc++.h>

using namespace std;

ifstream fin("capslock.in");
ofstream fout("capslock.out");

int main()
{
    char v[256];
    fin.get(v, 256);
    int cnt = 0;

    for(int i=0; v[i]; i++)
    {
        if(isupper(v[i]))
            v[i] = (int) v[i] + 32;
    }

    for(int i=0; v[i]; i++)
    {
        if((int) v[i] == 35)
        {
            strcpy(v + i, v + i + 1);
            cnt ++;
        }

        if(cnt%2!=0 && islower(v[i]))
            v[i] = (int) v[i] - 32;

    }

    fout << v;
    return 0;
}