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