flowchart TD
    linkStyle default stroke:#C9D4E1
    S[Start] --> A1
    A1[s = 1]
    A1 --> I1
    I1(if x > 10)
    I1 -->|then| T1
    I1 -->|else| E1
    T1{{return s + 10}}
    E1[t = 2]
    E1 --> I2
    I2(if x > 0)
    I2 -->|then| T2
    I2 -->|else| E2
    T2{{return t}}
    E2{{return -s}}
