class Ideone{
public static void main
(String[] args
) {
int depth = 4;
int loopCount = 4;
for (int i=0;i<loopCount;i++) {
for (int j=0;j<depth;j++) res+=startTag+txt;
for (int j=0;j<depth-1;j++) res+=endTag+txt;
res+=endTag;
}
}
}
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