added rest of the code

25/input

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+To continue, please consult the code grid in the manual.  Enter the code at row 3010, column 3019.

25/part1.py

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+#!/usr/bin/python
+
+import re
+
+RE_PARSE = re.compile(r'.* (\d+),.* (\d+).$')
+
+def read_file(filename):
+    file = open(filename, 'r')
+    while True:
+        line = file.readline()
+        if not line:
+            break
+        yield line
+
+
+def get_position(row, col):
+    triangle = (row + col-1) * (row + col) / 2
+    return triangle - row + 1
+
+
+def main():
+    code_first = 20151125
+    code_mul = 252533
+    code_mod = 33554393
+
+    for line in read_file('input'):
+        match = re.match(RE_PARSE, line)
+        row = int(match.group(1))
+        col = int(match.group(2))
+        code = code_first
+        iterations = get_position(row, col)
+        for x in range(iterations-1):
+            code = (code * code_mul) % code_mod
+        print code
+
+if __name__ == "__main__":
+    main()
+