题解 | #简写单词#

#include <stdio.h>
#define N 100
int main() {
    char str[N] = {0};

    while (EOF != scanf("%s", str))
    {
        if (isupper(*str))
        {
            printf("%c", *str);
        }
        else
        {
            printf("%c", (*str) - 32);
        }
    }

    return 0;
}