foo.cc: In function 'int main()':
foo.cc:16:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(int i=0;i<=l;i++)
   ^~~
foo.cc:18:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    cout<<s;
    ^~~~

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