#include <iostream> #include <cstring> using namespace std; int i,j,len; char s[50]; int main() { cin >>s; len = strlen(s); for (i = 0;i < len; ++i) { if (s[i] >= 'A' && s[i] <= 'Z') s[i] -= 'A' - 'a'; } for (i = 0;i < len; ++i) { if (s[i] < 'x') s[i] += 3; else s[i] += -23; } cout << s << '/'; for (j = 1;j < 4;j ++) { for (i = 0;i < len-j; i = i + j) { s[i] = s[i + j] ; } } cout << s << endl; return 0; }

输入：ABCDEFGuvwxyz

输出：______________