diff --git a/problem1.py b/problem1.py
new file mode 100644
index 0000000..dda3bfd
--- /dev/null
+++ b/problem1.py
@@ -0,0 +1,6 @@
+import pandas as pd
+
+
+def calculate_special_bonus(employees: pd.DataFrame) -> pd.DataFrame:
+    employees['bonus']=employees.apply(lambda row: 0 if row['name'].startswith('M') or row['employee_id']%2==0 else row['salary'], axis =1)
+    return employees[['employee_id','bonus']].sort_values('employee_id')
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diff --git a/problem2.py b/problem2.py
new file mode 100644
index 0000000..8ac31bb
--- /dev/null
+++ b/problem2.py
@@ -0,0 +1,6 @@
+import pandas as pd
+
+def fix_names(users: pd.DataFrame) -> pd.DataFrame:
+    users['name']=users['name'].str.capitalize()
+    return users.sort_values('user_id',ascending=True)
+    
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diff --git a/problem3.py b/problem3.py
new file mode 100644
index 0000000..c31b8e6
--- /dev/null
+++ b/problem3.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def find_patients(patients: pd.DataFrame) -> pd.DataFrame:
+    df=patients[patients['conditions'].str.startswith('DIAB1') | patients['conditions'].str.contains(' DIAB1')]
+    return df
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