#include<stdio.h>
#include<string.h>
#include<string.h>

int replaceZerosWithOnes(int n) {
    char str[20];
    sprintf(str, "%d", n);
    
    for (int i = 0; i < strlen(str); i++){
        if (str[i] == '0'){
            str[i] = '1';
        }
    }  
    return 0;
}
int main() {
    int num1 = 102030;
    int modifiedNum1 = replaceZerosWithOnes(num1);
    printf("sample Input 1 : %d, Sample Output 1: %d\n", num1, modifiedNum1);
    int num2 = -405;
    int modifiednum2 = replaceZerosWithOnes(num2);
    printf("sample Input 2: %d, Sample Output 2: %d\n", num2, modifiedNum2);
    
    return 0;
}