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