#include <stdio.h> #include <stdlib.h> int cti(char c) { int num = 100; if(c=='0') num = 0; else if(c=='1') num = 1; else if(c=='2') num = 2; else if(c=='3') num = 3; else if(c=='4') num = 4; else if(c=='5') num = 5; else if(c=='6') num = 6; else if(c=='7') num = 7; else if(c=='8') num = 8; else if(c=='9') num = 9; return num; } int main() { char s[14]; scanf("%s",s); int count = cti(s[0])*1+ cti(s[2])*2+cti(s[3])*3+cti(s[4])*4+ cti(s[6])*5+cti(s[7])*6+cti(s[8])*7+cti(s[9])*8+cti(s[10])*9; int flag = count%11; char c; if(flag ==10) c = 'X'; else c = flag+'0'; if(s[12]==c) printf("Right\n"); else { s[12]=c; printf("%s\n",s); } return 0; }