Getting the correct ans but no test case passing

hello @
sorting in descending order will not ensure maximum .

for example->
1
2
2 21
correct output is 221 but urs will give 212.

the logic is if a and b are two numbers then u can combine them in two ways either ab or ba right?
which ever combination give us maxium we will consider that order.
so just apply same logic in ur comparator and sort using this comparator

bool cmp(string a,string b){
return a+b > b+a;
} 


I understood my mistake and fixed it by what you said. Still no case is passing

print output for each test case in seprate line

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