20 lines
339 B
C++
20 lines
339 B
C++
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#include<bits/stdc++.h>
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using namespace std;
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int octal_to_decimal(int n){
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int num=0,r,multiplier=1;
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while(n>0){
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r=n%10;
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num=num + (r*multiplier);
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n=n/10;
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multiplier=multiplier*8;
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}
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return num;
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}
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int main(){
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int n;
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cin>>n;
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int decimal=octal_to_decimal(n);
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cout<<decimal;
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}
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