#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t val_new = 0;
for (uint8_t i = 0; i < 4; ++ i)
{
val_new = (val_new << 8) | (value & 0xFF);
value >>= 8;
}
return val_new;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}