What is the total enrollment for an affiliation of public, and was founded before 1866?
CREATE TABLE table_37201 (
    "School" text,
    "Location" text,
    "Founded" real,
    "Affiliation" text,
    "Enrollment" real,
    "Nickname" text,
    "Primary conference" text
)
SELECT COUNT("Enrollment") FROM table_37201 WHERE "Affiliation" = 'public' AND "Founded" < '1866'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the total enrollment for an affiliation of public, and was founded before 1866? ### Input: CREATE TABLE table_37201 (
    "School" text,
    "Location" text,
    "Founded" real,
    "Affiliation" text,
    "Enrollment" real,
    "Nickname" text,
    "Primary conference" text
) ### Response: SELECT COUNT("Enrollment") FROM table_37201 WHERE "Affiliation" = 'public' AND "Founded" < '1866'