diff --git a/TaskX07/Makefile b/TaskX07/Makefile
new file mode 100644
index 0000000..1c31acb
--- /dev/null
+++ b/TaskX07/Makefile
@@ -0,0 +1,9 @@
+
+# .far to specjalny format do przechowywania spakowanych transduktorów
+
+BINARIES += TaskX07/legiatolech.far
+
+TaskX07/run: TaskX07/legiatolech.far
+
+TaskX07/legiatolech.far: TaskX07/legiatolech.grm
+	LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/usr/lib/fst" thraxcompiler --input_grammar=$< --output_far=$@
diff --git a/TaskX07/legiatolech.grm b/TaskX07/legiatolech.grm
new file mode 100644
index 0000000..48bbbf3
--- /dev/null
+++ b/TaskX07/legiatolech.grm
@@ -0,0 +1,56 @@
+
+# zamiana końcówek, "i"/"ę" zgrupowane, bo zamieniamy na wspólną końcówkę
+suffixes = ("a" : "") | ("i" | "ę" : "a") | ("ą" : "em");
+
+# zamiana rdzenia
+legia_to_lech_core = "Legi" : "Lech";
+
+legia_to_lech = legia_to_lech_core suffixes;
+
+# Wszystkie możliwe znaki, niestety nie ma (?) prostszego sposobu.
+# Zauważmy, że polskie znaki diakrytyczne będą reprezentowane
+# tak naprawdę jako dwuznaki, nie stanowi to jednak problemu.
+allChars = Optimize[
+  "[1]" |   "[2]" |   "[3]" |   "[4]" |   "[5]" |   "[6]" |   "[7]" |   "[8]" |   "[9]" |  "[10]" |
+ "[11]" |  "[12]" |  "[13]" |  "[14]" |  "[15]" |  "[16]" |  "[17]" |  "[18]" |  "[19]" |  "[20]" |
+ "[21]" |  "[22]" |  "[23]" |  "[24]" |  "[25]" |  "[26]" |  "[27]" |  "[28]" |  "[29]" |  "[30]" |
+ "[31]" |  "[32]" |  "[33]" |  "[34]" |  "[35]" |  "[36]" |  "[37]" |  "[38]" |  "[39]" |  "[40]" |
+ "[41]" |  "[42]" |  "[43]" |  "[44]" |  "[45]" |  "[46]" |  "[47]" |  "[48]" |  "[49]" |  "[50]" |
+ "[51]" |  "[52]" |  "[53]" |  "[54]" |  "[55]" |  "[56]" |  "[57]" |  "[58]" |  "[59]" |  "[60]" |
+ "[61]" |  "[62]" |  "[63]" |  "[64]" |  "[65]" |  "[66]" |  "[67]" |  "[68]" |  "[69]" |  "[70]" |
+ "[71]" |  "[72]" |  "[73]" |  "[74]" |  "[75]" |  "[76]" |  "[77]" |  "[78]" |  "[79]" |  "[80]" |
+ "[81]" |  "[82]" |  "[83]" |  "[84]" |  "[85]" |  "[86]" |  "[87]" |  "[88]" |  "[89]" |  "[90]" |
+ "[91]" |  "[92]" |  "[93]" |  "[94]" |  "[95]" |  "[96]" |  "[97]" |  "[98]" |  "[99]" | "[100]" |
+"[101]" | "[102]" | "[103]" | "[104]" | "[105]" | "[106]" | "[107]" | "[108]" | "[109]" | "[110]" |
+"[111]" | "[112]" | "[113]" | "[114]" | "[115]" | "[116]" | "[117]" | "[118]" | "[119]" | "[120]" |
+"[121]" | "[122]" | "[123]" | "[124]" | "[125]" | "[126]" | "[127]" | "[128]" | "[129]" | "[130]" |
+"[131]" | "[132]" | "[133]" | "[134]" | "[135]" | "[136]" | "[137]" | "[138]" | "[139]" | "[140]" |
+"[141]" | "[142]" | "[143]" | "[144]" | "[145]" | "[146]" | "[147]" | "[148]" | "[149]" | "[150]" |
+"[151]" | "[152]" | "[153]" | "[154]" | "[155]" | "[156]" | "[157]" | "[158]" | "[159]" | "[160]" |
+"[161]" | "[162]" | "[163]" | "[164]" | "[165]" | "[166]" | "[167]" | "[168]" | "[169]" | "[170]" |
+"[171]" | "[172]" | "[173]" | "[174]" | "[175]" | "[176]" | "[177]" | "[178]" | "[179]" | "[180]" |
+"[181]" | "[182]" | "[183]" | "[184]" | "[185]" | "[186]" | "[187]" | "[188]" | "[189]" | "[190]" |
+"[191]" | "[192]" | "[193]" | "[194]" | "[195]" | "[196]" | "[197]" | "[198]" | "[199]" | "[200]" |
+"[201]" | "[202]" | "[203]" | "[204]" | "[205]" | "[206]" | "[207]" | "[208]" | "[209]" | "[210]" |
+"[211]" | "[212]" | "[213]" | "[214]" | "[215]" | "[216]" | "[217]" | "[218]" | "[219]" | "[220]" |
+"[221]" | "[222]" | "[223]" | "[224]" | "[225]" | "[226]" | "[227]" | "[228]" | "[229]" | "[230]" |
+"[231]" | "[232]" | "[233]" | "[234]" | "[235]" | "[236]" | "[237]" | "[238]" | "[239]" | "[240]" |
+"[241]" | "[242]" | "[243]" | "[244]" | "[245]" | "[246]" | "[247]" | "[248]" | "[249]" | "[250]" |
+"[251]" | "[252]" | "[253]" | "[254]" | "[255]"
+];
+
+add_four_digit = ("0":"4") | ("1":"5") | ("2":"6") | ("3":"7") | ("4":"8") | ("5":"9") | ("6":"S0") | ("7":"S1") | ("8":"S2") | ("9":"3C");
+
+add_one_digit = ("C0":"1") | ("C1":"2") | ("C2":"3") | ("C3":"4") | ("C4":"5") | ("C5":"6") | ("C6":"7") | ("C7":"8") | ("C8":"9") | ("C9":"0C");
+
+digit = "0" | "1" | "2" | "4" | "5" | "6" | "7" | "8" | "9";
+
+number = digit+;
+
+add_four = add_four_digit number?;
+
+#handle_carry = (number? (("S0":"0C") | ("S1":"1C") | ("S2":"2C") | ("S3":"3C")) number?) | number;
+
+handle_carry = (number? (("S0":"0C") | ("S1":"1C") | ("S2":"2C") | ("S3":"3C")) number?) | (number? (("C0":"1") | ("C1":"2") | ("C2":"3") | ("C3":"4") | ("C4":"5") | ("C5":"6") | ("C6":"7") | ("C7":"8") | ("C8":"9") | ("C9":"0C")) number?) | (number? ("C":"1"))  | number;
+
+export PROCESS = Optimize[Reverse[add_four @ handle_carry]];
diff --git a/TaskX07/run b/TaskX07/run
new file mode 100644
index 0000000..96b1df6
--- /dev/null
+++ b/TaskX07/run
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/lib/fst" thraxrewrite-tester --far=TaskX05/legiatolech.far --rules=PROCESS