Student roll number (2)

Write a Python program to print the roll number of the student. Student's first name is given in a file named 'name.txt' resides in the same folder as python program file. The output of the python program is only roll number.
For example, if the first name of the student is 'Vikas'. Then output must be CS01 only. Note: No spaces.

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Database schema

CREATE TABLE "public"."staff" (
    "staff_fname" varchar(80) NOT NULL,
    "staff_lname" varchar(80) NOT NULL,
    "id" varchar(20) NOT NULL,
    "gender" varchar(1) NOT NULL,
    "mobile_no" numeric(10,0) NOT NULL,
    "doj" date NOT NULL,
    PRIMARY KEY ("id")
);

CREATE TABLE "public"."book_catalogue" (
    "isbn_no" varchar(50) NOT NULL,
    "title" varchar(256) NOT NULL,
    "publisher" varchar(80) NOT NULL,
    "year" int4 NOT NULL,
    PRIMARY KEY ("isbn_no")
);

CREATE TABLE "public"."book_authors" (
    "isbn_no" varchar(13) NOT NULL,
    "author_fname" varchar(80) NOT NULL,
    "author_lname" varchar(80) NOT NULL,
    PRIMARY KEY ("isbn_no","author_fname","author_lname")
);

CREATE TABLE "public"."book_copies" (
    "isbn_no" varchar(13) NOT NULL,
    "accession_no" varchar(20) NOT NULL,
    PRIMARY KEY ("accession_no")
);

CREATE TABLE "public"."members" (
    "member_no" varchar(20) NOT NULL,
    "member_class" varchar(20) NOT NULL,
    "member_type" varchar(2) NOT NULL,
    "roll_no" varchar(20),
    "id" varchar(20),
    PRIMARY KEY ("member_no")
);

CREATE TABLE "public"."book_issue" (
    "member_no" varchar(20) NOT NULL,
    "accession_no" varchar(20) NOT NULL,
    "doi" date NOT NULL,
    PRIMARY KEY ("member_no","accession_no")
);

CREATE TABLE "public"."departments" (
    "department_code" varchar(80) NOT NULL,
    "department_name" varchar(80),
    "department_building" varchar(80),
    PRIMARY KEY ("department_code")
);

CREATE TABLE "public"."faculty" (
    "faculty_fname" varchar(80) NOT NULL,
    "faculty_lname" varchar(80) NOT NULL,
    "id" varchar(20) NOT NULL,
    "department_code" varchar(80) NOT NULL,
    "gender" varchar(1) NOT NULL,
    "mobile_no" numeric(10,0) NOT NULL,
    "doj" date NOT NULL,
    PRIMARY KEY ("id")
);

CREATE TABLE "public"."students" (
    "student_fname" varchar(80) NOT NULL,
    "student_lname" varchar(80) NOT NULL,
    "roll_no" varchar(20) NOT NULL,
    "department_code" varchar(80) NOT NULL,
    "gender" varchar(1) NOT NULL,
    "mobile_no" numeric(10,0) NOT NULL,
    "dob" date NOT NULL,
    "degree" varchar(80) NOT NULL,
    PRIMARY KEY ("roll_no")
);

CREATE TABLE "public"."quota" (
    "member_type" varchar(2) NOT NULL,
    "max_books" int4 NOT NULL,
    "max_duration" int4 NOT NULL,
    PRIMARY KEY ("member_type")
);