Can anyone help me to understand this program? And what should be the input of it?

Question

#include <stdio.h>

int main() {
int x, y;
char text[20];

scanf("%2d %d %*f %5s", &x, &y, text);
/* input: 1234 5.7 elephant */
printf("%d %d %s", x, y, text);
/* output: 12 34 eleph */

return 0;
}