#include <stdio.h>

void rotateDigit(char *str) {
    for (; *str; str++) {
        char c = *str; 
        if ('0' <= c && c <= '8') {
	    c++; 
        } else if (c=='9') {
            c='0';
        }
        putchar(c);
    }
}

int main(void) {
    rotateDigit("Galaxy Express 999\n");
    rotateDigit("1234567890\n");
    rotateDigit("1 2 3 daaa!\n");

    return 0;
}