#include <iostream>
int main()
{
uint32_t number = 1234;
uint8_t digits[6];
uint8_t digitsCounter = 0;
while ( number > 0 && digitsCounter < 6 )
{
digits[digitsCounter++] = number % 10;
number /= 10;
}
for ( uint8_t i = 0; i < digitsCounter; i++ )
{
printf( "%hhu", digits[i] );
}
for ( uint8_t i = digitsCounter; i < 6; i++ )
{
printf( "_" );
}
return 0;
}
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