bac 4/20/2022 5

#include <iostream>
#include <cstring>
using namespace std;
char s[100], aux[100];

int main() {
    gets(s);
    char *p = strtok(s, " ");
    while (p) {
        int n = strlen(p);
        if (n >= 3) {
            char ch = p[0];
            strcpy(p, p + 1);
            p[n - 1] = ch;
        }
        strcat(aux, p);
        strcat(aux, " ");
        p = strtok(NULL, " ");
    }
    aux[strlen(aux) - 1] = '\0';
    strcpy(s, aux);
    puts(s);
    return 0;
}