#include <stdint.h>

#define MISR_START() (*(volatile uint32_t *)0x40000000 = 1)
#define MISR_STOP()  (*(volatile uint32_t *)0x40000000 = 0)
#define SIM_FINISH() (*(volatile uint32_t *)0x20000000 = 1)
volatile uint32_t sink;

int main() {
    sink = 0;

    MISR_START();

    // Your Code here.
    sink = 1;

    MISR_STOP();
    SIM_FINISH();
    while(1) {
        __asm__ volatile ("nop");
    }
    return 0;
}