#include <stdio.h>
int main(void){
int a, b, c, d, min, m1, m2;
scanf("%d, %d, %d, %d", &a
, &b
, &c
, &d
); if(a>b) {min=a; a=b;b=min;}
if(a>c) {min=c; a=c; c=min;}
if(a>d) {min=d; a=d; d=min;}
if(b>c) {m1=b; b=c; c=m1;}
if(b>d) {m1=b; b=d; d=m1;}
if(c>d) {m2=c; c=d; d=m2;}
printf("按从小到大的顺序排列:%d,%d,%d,%d\n",a
, b
, c
, d
); return 0;
}
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