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 xaru for unit, telo for func, and gupi for area. Each creates a local scope. Open a block with KIND NAME on one line. Close the innermost open block with nix on its own line. KIND is one of xaru, telo, gupi; NAME is n_ followed by exactly eight lowercase letters and is unique in the program. A binding statement (let) is sem 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 bov 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: sem x_b 4122 sem x_a 2890 telo n_xubbtrah sem x_a 3834 bov p_gwsvasbv nix xaru n_svuhbhuc sem x_a 9147 gupi n_vatidpaw sem x_a 2381 bov p_bmncluwq nix telo n_bitcouov sem x_a 2353 nix probe q_weiyabfx x_a Answer: 9147 Example 2 Program prefix: sem x_b 4643 sem x_a 9240 gupi n_jwjtonjy sem x_a 5060 bov p_zvrdujac nix telo n_elakdjlt xaru n_zkugdafl sem x_a 7468 bov p_djjwjykg nix gupi n_pqsktqal sem x_a 1017 xaru n_pijimsaw sem x_a 5749 bov p_bkcqvgef nix nix probe q_onitejyk x_a Answer: 9240 Example 3 Program prefix: sem x_b 2603 sem x_a 4534 gupi n_igwgjwxr sem x_a 7717 bov p_arlbtehc nix gupi n_yzroehmu sem x_a 1287 xaru n_wztpbctn sem x_a 2226 bov p_onjrbqqr nix xaru n_jhlqzdhf sem x_a 9616 xaru n_plmwzuun sem x_a 1008 xaru n_zjasycsp sem x_a 7252 bov p_kzrmnund bov p_ldxedvla nix nix probe q_emfmlypw x_a Answer: 9616 Example 4 Program prefix: sem x_b 7712 sem x_a 1404 xaru n_orcqilwv sem x_a 5947 bov p_tnxbymlx nix telo n_vptgxaqc telo n_jtejogmc sem x_a 9799 bov p_ggijypnl nix gupi n_bjobaqua sem x_a 6432 bov p_odshpixa bov p_iojfbaoo bov p_psdmjcpx nix probe q_ekhnwdvf x_a Answer: 1404 Example 5 Program prefix: sem x_b 2396 sem x_a 1875 telo n_vtoyqqhf sem x_a 5155 bov p_jmjfcnjr nix gupi n_jugfmzum sem x_a 1775 telo n_mprryqun sem x_a 6576 bov p_agedtkcg nix xaru n_orkqqzbn sem x_a 9387 telo n_pqcoyknm sem x_a 7662 bov p_secslvsx bov p_shpapfhe bov p_hgrvmeey bov p_qlwoztrf nix nix probe q_azrftedt x_a Answer: 1775 Example 6 Program prefix: sem x_b 1134 sem x_a 9864 xaru n_tyonnqti sem x_a 4034 bov p_bneqoyft nix telo n_zumeyzwo sem x_a 7362 telo n_svppttop sem x_a 9968 bov p_duhfiapp nix telo n_hfinelpx telo n_btantfyt sem x_a 5771 gupi n_rozsaqva sem x_a 2454 bov p_jlrxmplc bov p_edrrrins bov p_ebylllhm bov p_iqroapfl bov p_qvfomogd nix nix probe q_smrujqtl x_a Answer: 7362 Example 7 Program prefix: sem x_b 6259 sem x_a 8415 telo n_jjsggzpc sem x_a 1241 bov p_qzsnyrmp nix telo n_wjfyport sem x_a 2363 xaru n_lephpreg sem x_a 6811 bov p_forfkwze nix xaru n_bpcqoznq sem x_a 8625 bov p_amteviko bov p_mpcobtyq bov p_exmjvecm bov p_xqjinttp bov p_tzxzsusn bov p_kzrptmdu nix probe q_iglmuvnu x_a Answer: 2363 Example 8 Program prefix: sem x_b 8707 sem x_a 6260 telo n_gzwokkrx sem x_a 6180 bov p_vazrrapk nix telo n_jklqiklj gupi n_cdoyhwqj sem x_a 5254 bov p_dgrdtjdm nix xaru n_mdlaxrnb sem x_a 6264 telo n_mhrfhtuz sem x_a 3058 bov p_mdxdngyi bov p_azlenkox bov p_kuelkeio bov p_lediertt bov p_zxscckam bov p_vsopddqw bov p_lasnjtfs nix nix probe q_brsxfyge x_a Answer: 6260 TEST Program prefix: sem x_a 4556 telo n_bggzuhnz sem x_a 6142 bov p_bmlivkpi nix xaru n_xbrqlbvd sem x_a 3037 gupi n_wxrpkvxi sem x_a 6798 bov p_cgfwrofw nix telo n_ibtqgsaz sem x_a 6834 nix probe q_jgpjyjlj x_a Answer: