#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) | (value & 0xFF);
value >>= 8;
}
return result;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}