輸入一個字符串，內有數字和非數字字符。打印字符串中所有連續的數字所組成的整數

#include <stdio.h>
#include <string.h>
void main() {
	char c[50] = {"123,,,5,,456"};
	int i=0;
	while(c[i] != '\0'){
        if((c[i]>='0' && c[i]<='9') && (c[i+1]>='0' && c[i+1]<='9')){
           while(c[i]>='0' && c[i]<='9'){
            printf("%c",c[i]);
            i++;
           }
           printf("\n");
        }
        i++;
	}
}