Contract f12740ec3454d1fbd1f64f45630cf33c7a0c6b41c04e4420a1a9fba04aef3977

fn save_operation(
    env: soroban_sdk::Env,
    op: soroban_sdk::Symbol,
    x: u32,
    y: u32,
    z: u32,
)

fn sum(env: soroban_sdk::Env, x: u32, y: u32) -> u32

fn sub(env: soroban_sdk::Env, x: u32, y: u32) -> u32

fn mul(env: soroban_sdk::Env, x: u32, y: u32) -> u32

fn div(env: soroban_sdk::Env, x: u32, y: u32) -> u32

fn get_op(env: soroban_sdk::Env, id: u32) -> Option

fn all_op(env: soroban_sdk::Env) -> soroban_sdk::Vec

fn last_op(env: soroban_sdk::Env) -> Option