please help me for loop c++ i don't to run it -

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I can not write a code for loop c ++, I want it 

  1 21 321 4321

But I do not write this way. 

  #include & lt; Iostream & gt; using namespace std; Int main () {int num; CIN & gt; & Gt; Number; (Int i = 1; i & lt; = num; i ++) for {for (int j = 1; j & lt; = i; j ++) {cout & lt; & Lt; J; } Cout & lt; & Lt; Endl; } Cin.get (); }

It outputs: 

  1 12 123 1234 12345 123456 1234567 12345678 123456789  

 for  (int j = i; j> = 1; j-- div = "post-text" itemprop = "text "> 
)

And it will work.


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