1 | 2 | 3 | 4 |
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1 : <!DOCTYPE html>
2 : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" >
3 : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN">
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