#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t result=0,temp;
temp = value;
result += (temp >> 24 ) & (0x000000FF);
result += (temp >> 8 ) & (0x0000FF00);
result += (temp << 8 ) & (0x00FF0000);
result += (temp << 24) & (0xFF000000);
return result;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}