Follow the task and return only the requested answer, without explanation or Markdown fences. You will read a prefix of a small scope language. Every block, regardless of its kind, creates a local scope. Statements are processed once, from top to bottom. A let statement binds a variable in the current scope. The nearest still-open scope containing the variable determines its value. Bindings in closed scopes are no longer visible. A nop statement has no effect. The final probe marks the observation point. Open blocks at the end of this prefix are intentional. Do not complete or repair the program. Return only the decimal integer visible at the final probe. SYNTAX The kind keywords are raku for unit, weso for func, and bifo for area. Each creates a local scope. Open a block with KIND NAME on one line. Close the innermost open block with hud KIND NAME on one line. KIND and NAME must repeat that block's opening keyword and name. KIND is one of raku, weso, bifo; NAME is n_ followed by exactly eight lowercase letters and is unique in the program. A binding statement (let) is zim VARIABLE VALUE. VARIABLE is x_ followed by one letter a through f; VALUE is a four digit integer from 1000 through 9999. Within one scope a variable is bound at most once. Inner bindings hide outer bindings until their scope closes. A no-effect statement (nop) is vop PAYLOAD. PAYLOAD is p_ followed by eight lowercase letters. The observation marker is probe PROBE_ID VARIABLE. PROBE_ID is q_ followed by eight lowercase letters. Use one statement per line. Indentation has no meaning; scope is determined solely by explicit opening and closing lines. EXAMPLES Example 1 Program prefix: zim x_b 4122 zim x_a 2890 weso n_xubbtrah zim x_a 3834 vop p_gwsvasbv hud weso n_xubbtrah raku n_svuhbhuc zim x_a 9147 bifo n_vatidpaw zim x_a 2381 vop p_bmncluwq hud bifo n_vatidpaw weso n_bitcouov zim x_a 2353 hud weso n_bitcouov probe q_weiyabfx x_a Answer: 9147 Example 2 Program prefix: zim x_b 4643 zim x_a 9240 bifo n_jwjtonjy zim x_a 5060 vop p_zvrdujac hud bifo n_jwjtonjy weso n_elakdjlt raku n_zkugdafl zim x_a 7468 vop p_djjwjykg hud raku n_zkugdafl bifo n_pqsktqal zim x_a 1017 raku n_pijimsaw zim x_a 5749 vop p_bkcqvgef hud raku n_pijimsaw hud bifo n_pqsktqal probe q_onitejyk x_a Answer: 9240 Example 3 Program prefix: zim x_b 2603 zim x_a 4534 bifo n_igwgjwxr zim x_a 7717 vop p_arlbtehc hud bifo n_igwgjwxr bifo n_yzroehmu zim x_a 1287 raku n_wztpbctn zim x_a 2226 vop p_onjrbqqr hud raku n_wztpbctn raku n_jhlqzdhf zim x_a 9616 raku n_plmwzuun zim x_a 1008 raku n_zjasycsp zim x_a 7252 vop p_kzrmnund vop p_ldxedvla hud raku n_zjasycsp hud raku n_plmwzuun probe q_emfmlypw x_a Answer: 9616 Example 4 Program prefix: zim x_b 7712 zim x_a 1404 raku n_orcqilwv zim x_a 5947 vop p_tnxbymlx hud raku n_orcqilwv weso n_vptgxaqc weso n_jtejogmc zim x_a 9799 vop p_ggijypnl hud weso n_jtejogmc bifo n_bjobaqua zim x_a 6432 vop p_odshpixa vop p_iojfbaoo vop p_psdmjcpx hud bifo n_bjobaqua probe q_ekhnwdvf x_a Answer: 1404 Example 5 Program prefix: zim x_b 2396 zim x_a 1875 weso n_vtoyqqhf zim x_a 5155 vop p_jmjfcnjr hud weso n_vtoyqqhf bifo n_jugfmzum zim x_a 1775 weso n_mprryqun zim x_a 6576 vop p_agedtkcg hud weso n_mprryqun raku n_orkqqzbn zim x_a 9387 weso n_pqcoyknm zim x_a 7662 vop p_secslvsx vop p_shpapfhe vop p_hgrvmeey vop p_qlwoztrf hud weso n_pqcoyknm hud raku n_orkqqzbn probe q_azrftedt x_a Answer: 1775 Example 6 Program prefix: zim x_b 1134 zim x_a 9864 raku n_tyonnqti zim x_a 4034 vop p_bneqoyft hud raku n_tyonnqti weso n_zumeyzwo zim x_a 7362 weso n_svppttop zim x_a 9968 vop p_duhfiapp hud weso n_svppttop weso n_hfinelpx weso n_btantfyt zim x_a 5771 bifo n_rozsaqva zim x_a 2454 vop p_jlrxmplc vop p_edrrrins vop p_ebylllhm vop p_iqroapfl vop p_qvfomogd hud bifo n_rozsaqva hud weso n_btantfyt probe q_smrujqtl x_a Answer: 7362 Example 7 Program prefix: zim x_b 6259 zim x_a 8415 weso n_jjsggzpc zim x_a 1241 vop p_qzsnyrmp hud weso n_jjsggzpc weso n_wjfyport zim x_a 2363 raku n_lephpreg zim x_a 6811 vop p_forfkwze hud raku n_lephpreg raku n_bpcqoznq zim x_a 8625 vop p_amteviko vop p_mpcobtyq vop p_exmjvecm vop p_xqjinttp vop p_tzxzsusn vop p_kzrptmdu hud raku n_bpcqoznq probe q_iglmuvnu x_a Answer: 2363 Example 8 Program prefix: zim x_b 8707 zim x_a 6260 weso n_gzwokkrx zim x_a 6180 vop p_vazrrapk hud weso n_gzwokkrx weso n_jklqiklj bifo n_cdoyhwqj zim x_a 5254 vop p_dgrdtjdm hud bifo n_cdoyhwqj raku n_mdlaxrnb zim x_a 6264 weso n_mhrfhtuz zim x_a 3058 vop p_mdxdngyi vop p_azlenkox vop p_kuelkeio vop p_lediertt vop p_zxscckam vop p_vsopddqw vop p_lasnjtfs hud weso n_mhrfhtuz hud raku n_mdlaxrnb probe q_brsxfyge x_a Answer: 6260 TEST Program prefix: zim x_a 5392 weso n_eqnodjdw zim x_a 2430 vop p_dbotqoii hud weso n_eqnodjdw raku n_yxhrcsyh raku n_kngivgml zim x_a 3886 vop p_ctasfnpv hud raku n_kngivgml weso n_fxyqqwlu zim x_a 9299 vop p_nevcyhjk vop p_rfyfqhcu vop p_wfwjnesl vop p_itxvsmhk vop p_hbbjrush vop p_sqgxchkc vop p_fjxemvle vop p_aggrdjzp vop p_kfjeagld vop p_tlqkdcjh vop p_lduevykl vop p_bmetiatf vop p_ocmecani vop p_fnryfijl vop p_hxtbzezt vop p_xrhjzhzv vop p_wvarapdw vop p_nurgmqhi vop p_kdxqtwvb vop p_gxpvazpb vop p_jnncwlju vop p_axlnjriq vop p_flordzdi vop p_rioyvkcy vop p_auzuxxin vop p_lgnynzof vop p_aowgqaxy vop p_ovrgknzn vop p_fhymdaxc vop p_vqprmxab vop p_zcyqkrbs vop p_zgdzybga hud weso n_fxyqqwlu probe q_xykaeozi x_a Answer: