184 : 문자열1 - 형성평가3

#include <stdio.h>
#include <string.h>
 
#pragma warning (disable:4996)
 
int main()
{
    char string[100];
 
    scanf("%s", string);
 
    for (int i = 0; i < strlen(string); i++)
    {
        if (('a' <= string[i]) && (string[i] <= 'z')) {
            printf("%c", string[i]);
        }
        else if (('A' <= string[i]) && (string[i] <= 'Z')) {
            printf("%c", string[i] + ('a' - 'A'));
        }
        else if (('0' <= string[i]) && (string[i] <= '9')) {
            printf("%c", string[i]);
        }
    }
 
 
    return 0;
}