View Compilation Error

0_0_33599152_7514.cpp: In function 'void init()':
0_0_33599152_7514.cpp:21:5: error: redeclaration of 'long long int i'
  ll i = lb-1; while( cb[i] == '0' && i >= 1 ) i--; lb = i+1;
     ^
0_0_33599152_7514.cpp:20:5: note: 'long long int i' previously declared here
  ll i = la-1; while( ca[i] == '0' && i >= 1 ) i--; la = i+1;
     ^
0_0_33599152_7514.cpp:22:5: error: redeclaration of 'long long int i'
  ll i = lc-1; while( cc[i] == '0' && i >= 1 ) i--; lc = i+1;
     ^
0_0_33599152_7514.cpp:20:5: note: 'long long int i' previously declared here
  ll i = la-1; while( ca[i] == '0' && i >= 1 ) i--; la = i+1;
     ^