#include<bits/stdc++.h>
using namespace std;
int main() {
long long int n,num=0,num1=0;
cin>>n;
int rem;
while(n>0){
rem=n%10;
if(9-rem>0){
num=num10+min(rem,9-rem);
}
else{
num=num10+rem;
}
n=n/10;
}
while(num>0){
rem=num%10;
num1=num1*10+rem;
num=num/10;
}
cout<<num1;
return 0;
}
I don’t know why this code is giving 80/100.
Works fine on the Hackerrank challenge probelm.
Hey @tgoel5884
for 99
output should be 90
Try to debug this on ur own now
Let me know if u need help 
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