#include <stdio.h> #include <string.h> int main() { char str[100],str1[100]; while(scanf("%s",&str) != EOF){ int len = strlen(str); int i; int k = 0; int sum = 0; for(i = len-1;i >= 0;i --){ if(str[i] >= '0'&&str[i] <= '9'){ sum++; str1[k] = str[i]; k++; if(sum == 3&&i != 0){ str1[k] = ','; sum = 0; k++; } } } for(i = k-1;i >= 0;i--){ printf("%c",str1[i]); } printf("\n"); } return 0; } |
Double click to view unformatted code.