Submission #1567355

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Source Code Expand

#include <iostream>
#include <stdio.h>
#include <string>
#include <cstdlib>
#include <cmath>
#include <math.h>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
	string s;
	cin >> s;

	for(int i=0; i<s.length(); i++){
		if(i==0){
			if(isupper(s.at(i)) == 0){
				printf("%c", s.at(i)-32);
			}else{
				printf("%c", s.at(i));
			}
		}else{
			if(islower(s.at(i)) == 0){
				printf("%c", s.at(i)+32);
			}else{
				printf("%c", s.at(i));
			}
		}
	}
	cout << endl;

	return 0;
}

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