#include <stdio.h> int main() { int a,b,c,d,n,m; scanf("%d",&n); if(n>1000) { a=n/1000; b=n%1000/100; c=n%100/10; d=n%10; printf("%d",n+1000*d+100*c+10*b+a); } else if(n>=100&&n<1000) { b=n%1000/100; c=n%100/10; d=n%10; printf("%d",n+100*d+10*c+b); } else if(n>=10&&n<100) { c=n%100/10; d=n%10; printf("%d",n+10*d+c); } else if(n>=1&&n<10) { d=n; printf("%d",n+d); } }
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