View Compilation Error

0_0_30382616_31987.cpp: In function 'int main()':
0_0_30382616_31987.cpp:7:48: error: expected '}' at end of input
 int main(){ int cas,len1,len2,i,j,cnt; cin>>cas; //scanf("%d",&cas); while(cas--) {  scanf("%s%s",str1,str2);  len1=strlen(str1);  len2=strlen(str2);  cnt=0;  for(i=0;i<len1;i++)  {   for(j=0;j<len2;j++)   {    if(str1[i]!=str2[j])    {     i=i-j;     break;    }    i++;   }   if(j==len2)    cnt++,i--;  }  printf("%d\n",cnt); } return 0;}
                                                ^