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