为啥第4个测试点WA了

为啥第4个测试点WA了

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,m;
    cin>>n; 
    if(n==1) cout<<"End";
    for(;n!=1;){
        if(n%2==1){
            m=n;
            n*=3;
            n++;
            printf("%d*3+1=%d\n",m,n);
        }else{
            m=n;
            n/=2;
            printf("%d/2=%d\n",m,n);
        }
    }
    cout<<"End";
    return 0;
}