问互斥锁便条正常工作吗？不能死锁

EN

#include <iostream>
#include <thread>
#include <mutex>
#include <pthread.h>
#include <cstdio>   // getchar
#include <thread>   // this_thread, yield
#include <future>   // async
#include <chrono>   // seconds
#include <unistd.h>
using namespace std;
mutex mut1, mut2, mut3;
int rs1=1; int rs2 = 2; int rs3=3;
int MAX = 20;

void funcA(){

    mut1.lock();
    cout<<"mut1 lock for thread A\n";
    for(int i=0; i<MAX; i++){
        rs2 = i;
    cout<<"[Aloop]rs1: "<<rs1<<" rs2: "<<rs2<<" rs3: "<<rs3<<" i:"<<i << endl;
    }
    rs1 = rs2;
    cout<<"[A]rs1: "<<rs1<<" rs2: "<<rs2<<" rs3: "<<rs3 << endl;
    mut1.unlock();
    cout<<"mut1 unlock for thread A\n";
}
void funcB(){

    mut2.lock();
    cout<<"mut2 lock for thread B\n";
    rs3 = rs1 + rs2;
    cout<<"[B]rs3: "<<rs3 << " rs1: "<<rs1 << " rs2: "<<rs2 <<endl;
    sleep(50);
    mut2.unlock();  
    cout<<"mut2 unlock for thread B\n";
}


int main(){
    thread tA(funcA);
    thread tB(funcB);

    tA.join();
    tB.join();

return 0;
}

//Here is my makefile
#Makefile project 2

project2: project2.o
    g++ -std=c++11 -pthread -o project2 project2.o
project2.o: project2.cpp project2.h
    g++ -std=c++11 -Wall -pthread -c project2.cpp
    //Below is my output