[Annelida] A question

[Бритаев Темир Аланович]

   PGRpdj7CoERlYXIgT3JseSw8L2Rpdj48ZGl2PsKgPC9kaXY+PGRpdj5JIGNhbiBhZHZpc2
   UgeW91
   IHRvIGNoZWNrIGEgcmV2aWV3IG9mIG9uIGFzc29jaWF0aW9uIG9mIFNwaXJvYnJhbmNodX
   Mgd2l0
   aCBoZXJtYXRpcGljIGNvcmFscyBwcmVwYXJlZCBieSBTIFJvd2xleSAiQSBjcml0aWNhbC
   BldmFs
   dWF0aW9uIG9mIHRoZSBzeW1iaW90aWMgYXNzb2NpYXRpb248YnIgLz5iZXR3ZWVuIHRyb3
   BpY2Fs
   IHR1YmUtZHdlbGxpbmcgUG9seWNoYWV0ZXMgYW5kIHRoZWlyIEhlcm1hdHlwaWMgY29yYW
   wgaG9z
   dHMsIHdpdGggYSBmb2N1cyBvbiBTcGlyb2JyYW5jaHVzIGdpZ2FudGV1cyAoUGFsbGFzLC
   AxNzY2
   KSIuIEkgaG9wZSwgeW91IHdpbGwgZmluZCB0aGVyZSBzb21ldGhpbmcgdXNlZnVsLjwvZG
   l2Pjxk
   aXY+wqA8L2Rpdj48ZGl2PldpdGggYmVzdCB3aXNoZXM8L2Rpdj48ZGl2PsKgPC9kaXY+PG
   Rpdj5U
   ZW1pciBCcml0YXlldjwvZGl2PjxkaXY+wqA8L2Rpdj48ZGl2PjE2LjAxLjIwMTQsIDIzOj
   E1LCAi
   15DXldeo15zXmSDXpNeo15kiICZsdDtvcmx5cGVycnkxQGdtYWlsLmNvbSZndDs6PC9kaX
   Y+PGJs
   b2NrcXVvdGUgdHlwZT0iY2l0ZSI+PHA+RGVhciBBbGwsPGJyIC8+PGJyIC8+TXkgbmFtZS
   BpcyBP
   cmx5IGFuZCBJIGhhdmUgc3RhcnRlZCBteSBQaEQgb24gKlNwaXJvYnJhbmNodXMgKmluIH
   RoZSBH
   dWxmIG9mPGJyIC8+RWlsYXQsIFJlZCBTZWEuPGJyIC8+SSB3b3VsZCBsaWtlIHRvIGludm
   VzdGln
   YXRlIHRoZSBuYXR1cmUgb2YgdGhlIHN5bWJpb3NpcyBiZXR3ZWVuIHRoZSB3b3JtPGJyIC
   8+YW5k
   IHRoZSBjb3JhbCBpdCBzaXRzIG9uLjxiciAvPkRvZXMgYW55b25lIGtub3cgaWYgY2FyYm
   9uIHRy
   YW5zbG9jYXRpb24gZXhwZXJpbWVudHMgd2VyZSBjb25kdWN0ZWQgb24gdGhlPGJyIC8+d2
   9ybT88
   YnIgLz5FeHBlcmltZW50cyBzdWNoIGFzIGZlZWRpbmcgdGhlIHdvcm0gb3IgdGhlIGNvcm
   FsIHdp
   dGggQzE0IHpvb3BsYW5rdG9uIG9yPGJyIC8+cGh5dG9wbGFua3Rvbi4uLi48YnIgLz48Yn
   IgLz5N
   YW55IHRoYW5rcyBmb3IgeW91ciBoZWxwLDxiciAvPk9ybHkgUGVycnk8YnIgLz5fX19fX1
   9fX19f
   X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXzxiciAvPkFubmVsaWRhIG
   1haWxp
   bmcgbGlzdDxiciAvPlBvc3Q6IDxhIGhyZWY9Im1haWx0bzpBbm5lbGlkYUBuZXQuYmlvLm
   5ldCI+
   QW5uZWxpZGFAbmV0LmJpby5uZXQ8L2E+PGJyIC8+SGVscC9hcmNoaXZlOiA8YSBocmVmPS
   JodHRw
   Oi8vd3d3LmJpby5uZXQvYmlvbWFpbC9saXN0aW5mby9hbm5lbGlkYSI+aHR0cDovL3d3dy
   5iaW8u
   bmV0L2Jpb21haWwvbGlzdGluZm8vYW5uZWxpZGE8L2E+PGJyIC8+UmVzb3VyY2VzOiA8YS
   BocmVm
   PSJodHRwOi8vd3d3LmFubmVsaWRhLm5ldC8iPmh0dHA6Ly93d3cuYW5uZWxpZGEubmV0PC
   9hPjwv
   cD48L2Jsb2NrcXVvdGU+PGRpdj7CoDwvZGl2PjxkaXY+wqA8L2Rpdj48ZGl2Pi0tIDxici
   AvPlRl
   bWlyIEEuIEJyaXRheWV2PGJyIC8+RHIuIFNjaS4sIHByb2Zlc3Nvciw8YnIgLz5IZWFkIG
   9mIHRo
   ZSBMYWJvcmF0b3J5IG9mIEVjb2xvZ3kgYW5kIE1vcnBob2xvZ3kgb2YgTWFyaW5lIEludm
   VydGVi
   cmF0ZXMgPGJyIC8+QS5OLiBTZXZlcnR6b3YgSW5zdGl0dXRlIG9mIEVjb2xvZ3kgJmFtcD
   sgRXZv
   bHV0aW9uIFJBUzxiciAvPkxlbmluc2t5IHByLiAzMywgMTE5MDcxIE1vc2NvdywgUnVzc2
   lhPGJy
   IC8+cGhvbmU6ICs3IDQ5OSAxMzUgMTg3NDxiciAvPnBoYXg6ICs3IDQ5NSA5NTQgNTUzND
   wvZGl2 Pg==