import 'dart:io';
void main() {
pattern(3);
}
void pattern(int n) {
print("working");
String pattern = " " * (n-1);
String starPattern = "*" * (n-1);
for(int i=0;i<n;i++){
if(i==(n+2-1)){
print(starPattern);
}
else{
print("$pattern*\n");}
for(int j= 0; j<n+2;j++){
print("${pattern}e");
}
}
}
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