uml.h

#include <iostream>

#define XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
#define X ;
#define Y class
#define Z {
#define R : public A {
#define X十 public:
#define Xー private:
#define HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX };
#define 人
#define ノ
#define ヽ
#define ヽノ
#define ヽノヽ

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Y                C                 Z
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Xー int c                          X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
X十 C(int c)                       X
X十 void print()                   X
HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
  ヽ                                                                            XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    ヽ                                                                          Y                A                 Z
      ヽ                                                                        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
        ヽ                                                                      Xー  int a                         X
          ヽ                                                                    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
            ヽ                                                                  X十  A(int a)                      X
              ヽ                                                                X十  virtual void print()          X
                ヽ                                                              HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                  ヽ                                                             人
                    ヽ                                                          ノ
                      ヽ                                                      ノ
                        ヽ                                                  ノ
                          ヽ                                              ノ
                            ヽ     XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX ノ
                             ヽノヽ Y                B                 R
                               ヽノ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                                   Xー  int b                         X
                                   Xー  C c;                          X
                                   XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                                   X十  B(int a, int b, int c)        X
                                   X十  void print()                  X
                                   HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

C::C(int c) : c(c) {}
A::A(int a) : a(a) {}
B::B(int a, int b, int c) : A(a), b(b), c(C(c)) {}

void C::print() {
    std::cout << c << std::endl;
}

void A::print() {
    std::cout << a << std::endl;
}

void B::print() {
    A::print();
    std::cout << b << std::endl;
    c.print();
}

bruh