Submission #187203

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Source Code Expand

#include <iostream>
#include <string>

using namespace std;

int main() {
    string s;
    cin >> s;
    for (int i=0; i<(int)s.length(); i++) {
        if ('a' <= s[i] && s[i] <= 'z') {
            if (i > 0) {
                cout << s[i];
            }
            else {
                cout << (char)(s[i]-'a'+'A');
            }
        }
        else {
            if (i > 0) {
                cout << (char)(s[i]-'A'+'a');
            }
            else {
                cout << s[i];
            }
        }
    }
    cout << endl;
    return 0;
}

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